Historical SYNOP Weather ObservationsHistorique des observations météorologiques (SYNOP)

Name: Historical SYNOP Weather Observations
Creator: opendatasoft

Historique des observations météorologiques (SYNOP)Historical SYNOP Weather Observations

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This API provides historical surface weather observation data derived from SYNOP messages circulated on the World Meteorological Organization's (WMO) Global Telecommunication System. It includes atmospheric parameters such as temperature, humidity, wind direction and force, and atmospheric pressure. The dataset is published via the open data portal of Métropole Aix-Marseille-Provence, France, and can be used for climate monitoring, meteorological research, and historical weather analysis at local and broader geographic scales.Données d'observations issues des messages internationaux d’observation en surface (SYNOP) circulant sur le système mondial de télécommunication (SMT) de l’Organisation Météorologique Mondiale (OMM). Paramètres atmosphériques mesurés (température, humidité, direction et force du vent, pression at...

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Data schema (82 fields)

Filterable via the API (81)

numer_stadatepmertendcod_tendddffttduvvwww1w2nnbashbasclcmchpresniv_bargeoptend24tn12tn24tx12tx24tminsolswtwraf10rafperperetat_solht_neigessfraiperssfrairr1rr3rr6rr12rr24phenspe1phenspe2phenspe3phenspe4nnuage1ctype1hnuage1nnuage2ctype2hnuage2nnuage3ctype3hnuage3nnuage4ctype4hnuage4nomtype_de_tendance_barometriquetemps_passe_1temps_presenttctn12ctn24ctx12ctx24ctminsolclatitudelongitudealtitudelibgeocodegeonom_epcicode_epcinom_deptcode_depnom_regcode_regmois_de_l_annee

Click a field to see example values.

Fill	Field	Type	Description
100%	numer_staID OMM station	text	—
100%	date	datetime	—
99.9%	pmerPression au niveau mer	int	Pa
99.9%	tendVariation de pression en 3 heures	double	Pa
99.9%	cod_tendType de tendance barométrique	text	—
100%	ddDirection du vent moyen 10 mn	int	degré
100%	ffVitesse du vent moyen 10 mn	double	m/s
100%	tTempérature	double	K
99.9%	tdPoint de rosée	double	K
99.9%	uHumidité	int	%
100%	vvVisibilité horizontale	double	m
94.7%	wwTemps présent	text	—
29.3%	w1Temps passé 1	text	—
29.1%	w2Temps passé 2	text	—
48.8%	nNebulosité totale	double	%
85.5%	nbasNébulosité des nuages de l' étage inférieur	text	octa
62.5%	hbasHauteur de la base des nuages de l'étage inférieur	double	mètre
24.8%	clType des nuages de l'étage inférieur	text	—
24.2%	cmType des nuages de l'étage moyen	text	—
23.8%	chType des nuages de l'étage supérieur	text	—
100%	presPression station	double	Pa
0%	niv_barNiveau barométrique	double	Pa
0%	geopGéopotentiel	text	m2/s2
69%	tend24Variation de pression en 24 heures	double	Pa
23.8%	tn12Température minimale sur 12 heures	double	K
0%	tn24Température minimale sur 24 heures	double	K
23.8%	tx12Température maximale sur 12 heures	double	K
0%	tx24Température maximale sur 24 heures	double	K
67.1%	tminsolTempérature minimale du sol sur 12 heures	double	K
0%	swMéthode de mesure Température du thermomètre mouillé	text	—
0%	twTempérature du thermomètre mouillé	double	K
65.7%	raf10Rafale sur les 10 dernières minutes	double	m/s
95.2%	rafperRafales sur une période	double	m/s
95.2%	perPeriode de mesure de la rafale	double	min
63.4%	etat_solEtat du sol	text	—
72.4%	ht_neigeHauteur totale de la couche de neige, glace, autre au sol	double	m
28.3%	ssfraiHauteur de la neige fraîche	double	m
27.3%	perssfraiPeriode de mesure de la neige fraiche	double	1/10 heure
99.7%	rr1Précipitations dans la dernière heure	double	mm
99.7%	rr3Précipitations dans les 3 dernières heures	double	mm
76.4%	rr6Précipitations dans les 6 dernières heures	double	mm
76%	rr12Précipitations dans les 12 dernières heures	double	mm
71.5%	rr24Précipitations dans les 24 dernières heures	double	mm
30.7%	phenspe1Phénomène spécial 1	double	—
30.7%	phenspe2Phénomène spécial 2	double	—
25%	phenspe3Phénomène spécial 3	double	—
1.2%	phenspe4Phénomène spécial 4	text	—
60.7%	nnuage1Nébulosité couche nuageuse 1	double	octa
24.4%	ctype1Type nuage 1	text	—
60%	hnuage1Hauteur de base 1	double	m
25.8%	nnuage2Nébulosité couche nuageuse 2	double	octa
11.4%	ctype2Type nuage 2	text	—
25.6%	hnuage2Hauteur de base 2	double	m
9%	nnuage3Nébulosité couche nuageuse 3	double	octa
3.2%	ctype3Type nuage 3	text	—
9%	hnuage3Hauteur de base 3	double	m
0.1%	nnuage4Nébulosité couche nuageuse 4	text	octa
2%	ctype4Type nuage 4	text	—
0.1%	hnuage4Hauteur de base 4	double	m
100%	nom	text	—
—	coordonnees	geo_point_2d	—
—	type_de_tendance_barometriqueType de tendance barométrique	text	—
—	temps_passe_1Temps passé 1	text	—
—	temps_presentTemps présent	text	—
—	tcTempérature (°C)	double	—
—	tn12cTempérature minimale sur 12 heures (°C)	double	—
—	tn24cTempérature minimale sur 24 heures (°C)	double	—
—	tx12cTempérature maximale sur 12 heures (°C)	double	—
—	tx24cTempérature maximale sur 24 heures (°C)	double	—
—	tminsolcTempérature minimale du sol sur 12 heures (en °C)	double	—
—	latitudeLatitude	double	—
—	longitudeLongitude	double	—
—	altitude	int	—
—	libgeocommunes (name)	text	—
—	codegeocommunes (code)	text	—
—	nom_epciEPCI (name)	text	—
—	code_epciEPCI (code)	text	—
—	nom_deptdepartment (name)	text	—
—	code_depdepartment (code)	text	—
—	nom_regregion (name)	text	—
—	code_regregion (code)	text	—
—	mois_de_l_anneeMois de l annee	int	—

Schema captured from opendatasoft 7 days ago.

Query the data

Pick columns and a sort, then fetch a live preview straight from the source. Choose an API-filterable column (marked ▾) under “Where” to pick from its list of values.

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Sample data (5 records)

Record 1n: — · t: 284.95

{
  "n": null,
  "t": 284.95,
  "u": 59,
  "ch": null,
  "cl": null,
  "cm": null,
  "dd": 80,
  "ff": 3,
  "sw": null,
  "tc": 11.800000000000011,
  "td": 277.15,
  "tw": null,
  "vv": 24520,
  "w1": null,
  "w2": null,
  "ww": "0",
  "nom": "MARIGNANE",
  "per": -10,
  "rr1": 0,
  "rr3": 0,
  "rr6": 0,
  "date": "2022-03-02T09:00:00+00:00",
  "geop": null,
  "hbas": 1750,
  "nbas": "3",
  "pmer": 102560,
  "pres": 102170,
  "rr12": 0,
  "rr24": 0,
  "tend": 0,
  "tn12": null,
  "tn24": null,
  "tx12": null,
  "tx24": null,
  "raf10": 4.1,
  "tn12c": null,
  "tn24c": null,
  "tx12c": null,
  "tx24c": null,
  "ctype1": null,
  "ctype2": null,
  "ctype3": null,
  "ctype4": null,
  "libgeo": "Marignane",
  "rafper": 5.2,
  "ssfrai": null,
  "tend24": -300,
  "codegeo": "13054",
  "hnuage1": 1680,
  "hnuage2": null,
  "hnuage3": null,
  "hnuage4": null,
  "niv_bar": null,
  "nnuage1": 3,
  "nnuage2": null,
  "nnuage3": null,
  "nnuage4": null,
  "nom_reg": "Provence-Alpes-Côte d'Azur",
  "tminsol": 276.35,
  "altitude": 9,
  "cod_tend": "0",
  "code_dep": "13",
  "code_reg": "93",
  "etat_sol": "0",
  "ht_neige": 0,
  "latitude": 43.437667,
  "nom_dept": "Bouches-du-Rhône",
  "nom_epci": "Métropole d'Aix-Marseille-Provence",
  "phenspe1": null,
  "phenspe2": null,
  "phenspe3": null,
  "phenspe4": null,
  "tminsolc": 3.2000000000000455,
  "code_epci": "200054807",
  "longitude": 5.216,
  "numer_sta": "07650",
  "perssfrai": null,
  "coordonnees": {
    "lat": 43.437667,
    "lon": 5.216
  },
  "temps_passe_1": null,
  "temps_present": null,
  "mois_de_l_annee": 3,
  "type_de_tendance_barometrique": "En hausse, puis en baisse la pression atmosphérique est la même ou plus haute que trois heures auparavant"
}

Record 2n: — · t: 283.65

{
  "n": null,
  "t": 283.65,
  "u": 45,
  "ch": null,
  "cl": null,
  "cm": null,
  "dd": 100,
  "ff": 3.1,
  "sw": null,
  "tc": 10.5,
  "td": 272.25,
  "tw": null,
  "vv": 20070,
  "w1": null,
  "w2": null,
  "ww": "0",
  "nom": "MARIGNANE",
  "per": -10,
  "rr1": 0,
  "rr3": 0,
  "rr6": 0,
  "date": "2022-03-29T06:00:00+00:00",
  "geop": null,
  "hbas": 7260,
  "nbas": "1",
  "pmer": 101530,
  "pres": 101140,
  "rr12": 0,
  "rr24": 0,
  "tend": -160,
  "tn12": 281.25,
  "tn24": null,
  "tx12": 289.55,
  "tx24": null,
  "raf10": 3.7,
  "tn12c": 8.100000000000023,
  "tn24c": null,
  "tx12c": 16.400000000000034,
  "tx24c": null,
  "ctype1": null,
  "ctype2": null,
  "ctype3": null,
  "ctype4": null,
  "libgeo": "Marignane",
  "rafper": 5.5,
  "ssfrai": null,
  "tend24": -990,
  "codegeo": "13054",
  "hnuage1": 7260,
  "hnuage2": null,
  "hnuage3": null,
  "hnuage4": null,
  "niv_bar": null,
  "nnuage1": 1,
  "nnuage2": null,
  "nnuage3": null,
  "nnuage4": null,
  "nom_reg": "Provence-Alpes-Côte d'Azur",
  "tminsol": 280.55,
  "altitude": 9,
  "cod_tend": "6",
  "code_dep": "13",
  "code_reg": "93",
  "etat_sol": "0",
  "ht_neige": 0,
  "latitude": 43.437667,
  "nom_dept": "Bouches-du-Rhône",
  "nom_epci": "Métropole d'Aix-Marseille-Provence",
  "phenspe1": null,
  "phenspe2": null,
  "phenspe3": null,
  "phenspe4": null,
  "tminsolc": 7.400000000000034,
  "code_epci": "200054807",
  "longitude": 5.216,
  "numer_sta": "07650",
  "perssfrai": null,
  "coordonnees": {
    "lat": 43.437667,
    "lon": 5.216
  },
  "temps_passe_1": null,
  "temps_present": null,
  "mois_de_l_annee": 3,
  "type_de_tendance_barometrique": "En baisse, puis stationnaire, ou en baisse, puis en baisse plus lente"
}

Record 3n: — · t: 292.75

{
  "n": null,
  "t": 292.75,
  "u": 37,
  "ch": null,
  "cl": null,
  "cm": null,
  "dd": 180,
  "ff": 6,
  "sw": null,
  "tc": 19.600000000000023,
  "td": 277.65,
  "tw": null,
  "vv": 27430,
  "w1": null,
  "w2": null,
  "ww": "0",
  "nom": "MARIGNANE",
  "per": -10,
  "rr1": 0,
  "rr3": 0,
  "rr6": 0,
  "date": "2022-03-29T12:00:00+00:00",
  "geop": null,
  "hbas": 7260,
  "nbas": "1",
  "pmer": 101360,
  "pres": 100980,
  "rr12": 0,
  "rr24": 0,
  "tend": -200,
  "tn12": null,
  "tn24": null,
  "tx12": null,
  "tx24": null,
  "raf10": 8.6,
  "tn12c": null,
  "tn24c": null,
  "tx12c": null,
  "tx24c": null,
  "ctype1": null,
  "ctype2": null,
  "ctype3": null,
  "ctype4": null,
  "libgeo": "Marignane",
  "rafper": 8.6,
  "ssfrai": null,
  "tend24": -1090,
  "codegeo": "13054",
  "hnuage1": 7260,
  "hnuage2": null,
  "hnuage3": null,
  "hnuage4": null,
  "niv_bar": null,
  "nnuage1": 1,
  "nnuage2": null,
  "nnuage3": null,
  "nnuage4": null,
  "nom_reg": "Provence-Alpes-Côte d'Azur",
  "tminsol": 280.55,
  "altitude": 9,
  "cod_tend": "8",
  "code_dep": "13",
  "code_reg": "93",
  "etat_sol": "0",
  "ht_neige": 0,
  "latitude": 43.437667,
  "nom_dept": "Bouches-du-Rhône",
  "nom_epci": "Métropole d'Aix-Marseille-Provence",
  "phenspe1": null,
  "phenspe2": null,
  "phenspe3": null,
  "phenspe4": null,
  "tminsolc": 7.400000000000034,
  "code_epci": "200054807",
  "longitude": 5.216,
  "numer_sta": "07650",
  "perssfrai": null,
  "coordonnees": {
    "lat": 43.437667,
    "lon": 5.216
  },
  "temps_passe_1": null,
  "temps_present": null,
  "mois_de_l_annee": 3,
  "type_de_tendance_barometrique": "Stationnaire ou en hausse, puis en baisse, ou en baisse, puis en baisse plus rapide"
}

Record 4n: — · t: 294.15

{
  "n": null,
  "t": 294.15,
  "u": 26,
  "ch": null,
  "cl": null,
  "cm": null,
  "dd": 200,
  "ff": 4.4,
  "sw": null,
  "tc": 21,
  "td": 273.85,
  "tw": null,
  "vv": 17840,
  "w1": null,
  "w2": null,
  "ww": "0",
  "nom": "MARIGNANE",
  "per": -10,
  "rr1": 0,
  "rr3": 0,
  "rr6": 0,
  "date": "2022-03-28T15:00:00+00:00",
  "geop": null,
  "hbas": null,
  "nbas": "0",
  "pmer": 102120,
  "pres": 101740,
  "rr12": 0,
  "rr24": 0,
  "tend": -330,
  "tn12": null,
  "tn24": null,
  "tx12": null,
  "tx24": null,
  "raf10": 6.3,
  "tn12c": null,
  "tn24c": null,
  "tx12c": null,
  "tx24c": null,
  "ctype1": null,
  "ctype2": null,
  "ctype3": null,
  "ctype4": null,
  "libgeo": "Marignane",
  "rafper": 8.1,
  "ssfrai": null,
  "tend24": -320,
  "codegeo": "13054",
  "hnuage1": null,
  "hnuage2": null,
  "hnuage3": null,
  "hnuage4": null,
  "niv_bar": null,
  "nnuage1": null,
  "nnuage2": null,
  "nnuage3": null,
  "nnuage4": null,
  "nom_reg": "Provence-Alpes-Côte d'Azur",
  "tminsol": 279.45,
  "altitude": 9,
  "cod_tend": "6",
  "code_dep": "13",
  "code_reg": "93",
  "etat_sol": "0",
  "ht_neige": 0,
  "latitude": 43.437667,
  "nom_dept": "Bouches-du-Rhône",
  "nom_epci": "Métropole d'Aix-Marseille-Provence",
  "phenspe1": null,
  "phenspe2": null,
  "phenspe3": null,
  "phenspe4": null,
  "tminsolc": 6.300000000000011,
  "code_epci": "200054807",
  "longitude": 5.216,
  "numer_sta": "07650",
  "perssfrai": null,
  "coordonnees": {
    "lat": 43.437667,
    "lon": 5.216
  },
  "temps_passe_1": null,
  "temps_present": null,
  "mois_de_l_annee": 3,
  "type_de_tendance_barometrique": "En baisse, puis stationnaire, ou en baisse, puis en baisse plus lente"
}

Record 5n: — · t: 295.05

{
  "n": null,
  "t": 295.05,
  "u": 32,
  "ch": null,
  "cl": null,
  "cm": null,
  "dd": 250,
  "ff": 3.9,
  "sw": null,
  "tc": 21.900000000000034,
  "td": 277.55,
  "tw": null,
  "vv": 19450,
  "w1": null,
  "w2": null,
  "ww": "0",
  "nom": "MARIGNANE",
  "per": -10,
  "rr1": 0,
  "rr3": 0,
  "rr6": 0,
  "date": "2022-03-27T12:00:00+00:00",
  "geop": null,
  "hbas": 6840,
  "nbas": "1",
  "pmer": 102490,
  "pres": 102110,
  "rr12": 0,
  "rr24": 0,
  "tend": -60,
  "tn12": null,
  "tn24": null,
  "tx12": null,
  "tx24": null,
  "raf10": 4.9,
  "tn12c": null,
  "tn24c": null,
  "tx12c": null,
  "tx24c": null,
  "ctype1": null,
  "ctype2": null,
  "ctype3": null,
  "ctype4": null,
  "libgeo": "Marignane",
  "rafper": 7.8,
  "ssfrai": null,
  "tend24": 200,
  "codegeo": "13054",
  "hnuage1": 6840,
  "hnuage2": null,
  "hnuage3": null,
  "hnuage4": null,
  "niv_bar": null,
  "nnuage1": 1,
  "nnuage2": null,
  "nnuage3": null,
  "nnuage4": null,
  "nom_reg": "Provence-Alpes-Côte d'Azur",
  "tminsol": 282.55,
  "altitude": 9,
  "cod_tend": "8",
  "code_dep": "13",
  "code_reg": "93",
  "etat_sol": "0",
  "ht_neige": 0,
  "latitude": 43.437667,
  "nom_dept": "Bouches-du-Rhône",
  "nom_epci": "Métropole d'Aix-Marseille-Provence",
  "phenspe1": null,
  "phenspe2": null,
  "phenspe3": null,
  "phenspe4": null,
  "tminsolc": 9.400000000000034,
  "code_epci": "200054807",
  "longitude": 5.216,
  "numer_sta": "07650",
  "perssfrai": null,
  "coordonnees": {
    "lat": 43.437667,
    "lon": 5.216
  },
  "temps_passe_1": null,
  "temps_present": null,
  "mois_de_l_annee": 3,
  "type_de_tendance_barometrique": "Stationnaire ou en hausse, puis en baisse, ou en baisse, puis en baisse plus rapide"
}

Live sample captured at profiling time — values may have changed upstream.

Verification Status

Using the API

Configuration

Base URL: https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/fed-observation-meteorologique-historiques-france-synop

License

Licence Ouverte 2.0 (France / Etalab)Open

✓ Redistributable
✓ Attribution required

Query examples

curl -s 'https://data.ampmetropole.fr/api/explore/v2.1/catalog/datasets/fed-observation-meteorologique-historiques-france-synop/records?limit=20' -H 'Accept: application/json'

First 20 records of the dataset as JSON.

Uses the Opendatasoft Explore v2.1 syntax — supports select, where, group_by and order_by.

Full API documentation ↗

Rate limits

10 000 000 req/day

per ipmeasured

observed 7 days ago

Dataset

Volume & freshness

Records

47k

46814

Last upstream update

7 months ago

2026-02-02

License

No license declared upstream.

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Source: opendatasoft

Machine-readable & source

JSON

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