Troncens is wetter than 82% of mainland French towns: 937 mm of rain a year
Nights in January average 0.8°C. Seasons differ by 26°C, from the coldest nights to the warmest afternoons. In January, nights here are colder than in 77% of mainland French towns. Gritters and ice scrapers earn their keep on roughly 50 nights a year below 0°C.
These are the figures of Météo-France’s Vic-en-Bigorre station, 17 km south-west.
A year in Troncens at a glance
Each month’s typical high and low in °C, at the Vic-en-Bigorre station.
What a year in Troncens feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Vic-en-Bigorre.
About 937 mm of rain a year
April is the wettest month and August the driest. About 31 days a year bring 10 mm or more. The wettest of 11 towns of 2,500+ in Gers.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Tarbes-Lourdes-Pyrenees
A frosty town: 50 frosts and 81 days of 25°C a year
On about 50 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 81 days a year reach 25°C, and 24 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Vic-en-Bigorre: 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 Vic-en-Bigorre
Vic-en-Bigorre is 17 km south-west of Troncens. Every figure on this page is the station’s, not a measurement in Troncens itself.
| Station (Météo-France number) | Vic-en-Bigorre (65460002) |
| Distance from the town | 17 km south-west |
| Station altitude | 219 m |
| Town altitude (its center) | 227 m |
| Period | 1991–2020 |
| Nearest station of any kind | 13 km |
| Sunshine measured at | Tarbes-Lourdes-Pyrenees, 35 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 Troncens 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 Gers.
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 |
|---|---|---|---|---|
| Troncens | Vic-en-Bigorre | 26.6°C | 0.8°C | 937 mm |
| Vic-en-Bigorre 15 km | same station | 26.6°C about the same | 0.8°C about the same | 937 mm |
| Mirande 16 km | Mirande | 27.8°C 1.2°C warmer | 1.9°C 1.1°C milder | 819 mm |
| Aureilhan 25 km | Castelvieilh | 25.8°C 0.8°C cooler | 3.3°C 2.5°C milder | 956 mm |
| Bordères-sur-l'Échez 26 km | Tarbes-Lourdes-Pyrenees | 25.2°C 1.4°C cooler | 1.1°C about the same | 1,081 mm |
| Séméac 27 km | Castelvieilh | 25.8°C 0.8°C cooler | 3.3°C 2.5°C milder | 956 mm |
| Tarbes 28 km | Tarbes-Lourdes-Pyrenees | 25.2°C 1.4°C cooler | 1.1°C about the same | 1,081 mm |
Troncens weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Vic-en-Bigorre station; sunshine at Tarbes-Lourdes-Pyrenees.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 10.7°C | 0.8°C | 5.7°C | 87 mm | 114 |
| February | 12.0°C | 1.1°C | 6.5°C | 70 mm | 129 |
| March | 15.3°C | 3.7°C | 9.5°C | 74 mm | 169 |
| April | 17.6°C | 6.4°C | 12.0°C | 100 mm | 170 |
| May | 21.2°C | 10.2°C | 15.7°C | 96 mm | 189 |
| June | 24.7°C | 13.5°C | 19.1°C | 74 mm | 196 |
| July | 26.6°C | 15.0°C | 20.8°C | 65 mm | 207 |
| August | 27.0°C | 14.8°C | 20.9°C | 58 mm | 208 |
| September | 24.2°C | 11.4°C | 17.8°C | 65 mm | 195 |
| October | 20.1°C | 8.0°C | 14.0°C | 71 mm | 156 |
| November | 14.2°C | 3.9°C | 9.0°C | 99 mm | 118 |
| December | 11.4°C | 1.4°C | 6.4°C | 80 mm | 112 |
| Year | 18.8°C | 7.5°C | 13.1°C | 937 mm | 1,964 |
Where Troncens’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Vic-en-Bigorre, 17 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, Tarbes-Lourdes-Pyrenees, 35 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 Gers.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Troncens’s climate
How warm does Troncens get in summer?
August is the warmest month, with average highs of 27.0°C. About 81 days a year reach 25°C, more than 72% of mainland French towns, and about 24 reach 30°C.
How cold does Troncens get in winter?
January nights average 0.8°C. The air drops to 0°C or below on about 50 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Troncens get?
About 937 mm a year, more than 82% of mainland French towns. April is the wettest month (100 mm) and August the driest (58 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Tarbes-Lourdes-Pyrenees (35 km away), averages 1,964 hours of sunshine a year.
Are these figures for Troncens itself?
No: they are the normals of the Météo-France station matched to Troncens, Vic-en-Bigorre, 17 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 VIC EN BIGORRE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Troncens →
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.