Midwinter lows in Saint-Trojan stay above those of 85% of mainland French towns
High summer brings afternoon highs near 27.1°C. The gap between a January night and a July afternoon is 24°C. By warm days alone, it ranks hotter than 73% of mainland French towns. Plan for rain on about 122 days a year, the days with 1 mm or more.
Figures from Météo-France’s Saint-Gervais station, 11 km south-east.
A year in Saint-Trojan at a glance
Each month’s typical high and low in °C, at the Saint-Gervais station.
What a year in Saint-Trojan feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Gervais.
About 825 mm of rain a year
November is the wettest month and July the driest. About 26 days a year bring 10 mm or more. 90th wettest of 113 towns of 2,500+ in Gironde.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Pauillac
28 frosts and 82 days of 25°C a year
On about 28 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 82 days a year reach 25°C, and 24 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Gervais: 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 Saint-Gervais
Saint-Gervais is 11 km south-east of Saint-Trojan. Every figure on this page is the station’s, not a measurement in Saint-Trojan itself.
| Station (Météo-France number) | Saint-Gervais (33415001) |
| Distance from the town | 11 km south-east |
| Station altitude | 42 m |
| Town altitude (its center) | 85 m |
| Period | 1995–2020 (the station’s own record) |
| Sunshine measured at | Pauillac, 21 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 Saint-Trojan 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 Gironde.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Saint-Trojan | Saint-Gervais | 27.1°C | 3.5°C | 825 mm |
| Blaye 7.3 km | Pauillac | 26.7°C about the same | 4.0°C 0.5°C milder | 857 mm |
| Ambès 9.5 km | same station | 27.1°C about the same | 3.5°C about the same | 825 mm |
| Macau 9.9 km | same station | 27.1°C about the same | 3.5°C about the same | 825 mm |
| Margaux-Cantenac 10 km | Salaunes | 27.0°C about the same | 2.4°C 1.1°C colder | 1,007 mm |
| Cézac 12 km | same station | 27.1°C about the same | 3.5°C about the same | 825 mm |
| Saint-Savin 12 km | Montlieu | 27.2°C about the same | 2.4°C 1.1°C colder | 929 mm |
Saint-Trojan weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Gervais station; sunshine at Pauillac.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 10.2°C | 3.5°C | 6.8°C | 84 mm | 84 |
| February | 11.7°C | 3.3°C | 7.5°C | 61 mm | 126 |
| March | 15.4°C | 5.4°C | 10.4°C | 61 mm | 171 |
| April | 18.3°C | 7.6°C | 13.0°C | 67 mm | 205 |
| May | 21.9°C | 11.1°C | 16.5°C | 64 mm | 232 |
| June | 25.3°C | 14.1°C | 19.7°C | 64 mm | 251 |
| July | 27.1°C | 15.5°C | 21.3°C | 45 mm | 273 |
| August | 27.5°C | 15.4°C | 21.5°C | 52 mm | 255 |
| September | 24.3°C | 12.5°C | 18.4°C | 63 mm | 223 |
| October | 19.9°C | 10.3°C | 15.1°C | 76 mm | 158 |
| November | 13.8°C | 6.3°C | 10.0°C | 99 mm | 106 |
| December | 10.6°C | 3.8°C | 7.2°C | 92 mm | 92 |
| Year | 18.8°C | 9.1°C | 13.9°C | 825 mm | 2,175 |
Where Saint-Trojan’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Gervais, 11 km away: statistics for 1991–2020 (the station’s own years, 1995–2020, where its record is shorter).
- 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, Pauillac, 21 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 Gironde.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Trojan’s climate
How warm does Saint-Trojan get in summer?
August is the warmest month, with average highs of 27.5°C. About 82 days a year reach 25°C, more than 73% of mainland French towns, and about 24 reach 30°C.
How cold does Saint-Trojan get in winter?
February nights average 3.3°C. The air drops to 0°C or below on about 28 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Saint-Trojan get?
About 825 mm a year, more than 66% of mainland French towns. November is the wettest month (99 mm) and July the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Pauillac (21 km away), averages 2,175 hours of sunshine a year.
Are these figures for Saint-Trojan itself?
No: they are the normals of the Météo-France station matched to Saint-Trojan, Saint-Gervais, 11 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 ST GERVAIS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Trojan →
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.