Few mainland French towns have warmer summer afternoons than Vallon-Pont-d'Arc
Midwinter brings lows of about 1.0°C. By rainfall alone, it ranks wetter than 87% of mainland French towns. The gap between a January night and a July afternoon is 30°C. Radiators earn their keep from November to February, the months that average under 10°C.
Figures from Météo-France’s Vallon Sa station, 2.5 km south-east.
A year in Vallon-Pont-d'Arc at a glance
Each month’s typical high and low in °C, at the Vallon Sa station.
What a year in Vallon-Pont-d'Arc feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Vallon Sa.
About 1,005 mm of rain a year
November is the wettest month and July the driest. About 29 days a year bring 10 mm or more. 9th wettest of 22 towns of 2,500+ in Ardèche.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lanas Syn
48 frosts and 114 days of 25°C a year
On about 48 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 114 days a year reach 25°C, and 56 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Vallon Sa: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Vallon Sa
Vallon Sa is 2.5 km south-east of Vallon-Pont-d'Arc. Every figure on this page is the station’s, not a measurement in Vallon-Pont-d'Arc itself.
| Station (Météo-France number) | Vallon Sa (07330004) |
| Distance from the town | 2.5 km south-east |
| Station altitude | 120 m |
| Town altitude (its center) | 98 m |
| Period | 1991–2020 |
| Sunshine measured at | Lanas Syn, 14 km away |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Vallon-Pont-d'Arc compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Ardèche.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Vallon-Pont-d'Arc | Vallon Sa | 31.4°C | 1.0°C | 1,005 mm |
| Villeneuve-de-Berg 19 km | Mirabel Sa | 29.5°C 1.9°C cooler | 1.2°C about the same | 998 mm |
| Les Vans 20 km | Grospierres | 31.9°C 0.5°C warmer | 0.1°C 0.9°C colder | 1,095 mm |
| Bourg-Saint-Andéol 20 km | Pierrelatte | 30.3°C 1.1°C cooler | 2.3°C 1.3°C milder | 795 mm |
| Saint-Étienne-de-Fontbellon 21 km | Aubenas Sa | 30.4°C 1°C cooler | 1.0°C about the same | 1,061 mm |
| Aubenas 23 km | Vals-les-Bains | 29.7°C 1.7°C cooler | 1.6°C 0.6°C milder | 1,250 mm |
| Saint-Ambroix 23 km | Salindres | 30.9°C 0.5°C cooler | 1.1°C about the same | 1,092 mm |
Vallon-Pont-d'Arc weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Vallon Sa station; sunshine at Lanas Syn.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.9°C | 1.0°C | 4.9°C | 78 mm | 131 |
| February | 11.1°C | 1.0°C | 6.1°C | 52 mm | 153 |
| March | 16.3°C | 3.7°C | 10.0°C | 57 mm | 208 |
| April | 19.6°C | 6.3°C | 13.0°C | 78 mm | 208 |
| May | 23.7°C | 10.0°C | 16.8°C | 86 mm | 246 |
| June | 28.2°C | 13.6°C | 20.9°C | 56 mm | 286 |
| July | 31.4°C | 15.7°C | 23.5°C | 49 mm | 314 |
| August | 31.0°C | 15.4°C | 23.2°C | 62 mm | 284 |
| September | 25.2°C | 12.2°C | 18.7°C | 138 mm | 220 |
| October | 18.9°C | 9.3°C | 14.1°C | 135 mm | 154 |
| November | 12.7°C | 5.0°C | 8.9°C | 141 mm | 125 |
| December | 9.2°C | 1.8°C | 5.5°C | 75 mm | 120 |
| Year | 19.7°C | 7.9°C | 13.8°C | 1,005 mm | 2,447 |
Where Vallon-Pont-d'Arc’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Vallon Sa, 2.5 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Lanas Syn, 14 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Ardèche.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Vallon-Pont-d'Arc’s climate
How warm does Vallon-Pont-d'Arc get in summer?
July is the warmest month, with average highs of 31.4°C. About 114 days a year reach 25°C, more than 93% of mainland French towns, and about 56 reach 30°C.
How cold does Vallon-Pont-d'Arc get in winter?
January nights average 1.0°C. The air drops to 0°C or below on about 48 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Vallon-Pont-d'Arc get?
About 1,005 mm a year, more than 87% of mainland French towns. November is the wettest month (141 mm) and July the driest (49 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lanas Syn (14 km away), averages 2,447 hours of sunshine a year.
Are these figures for Vallon-Pont-d'Arc itself?
No: they are the normals of the Météo-France station matched to Vallon-Pont-d'Arc, Vallon Sa, 2.5 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station VALLON SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Vallon-Pont-d'Arc →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.