Weather without surprises: Sillars keeps close to the norm for mainland French towns
A typical year brings 782 mm of rain, with July afternoons around 26.3°C and January nights around 2.6°C. By January nights alone, it runs milder than 64% of mainland French towns. November is the wettest month, July the driest. The outdoor season runs from May to October, with highs of 17–27°C.
These are the figures of Météo-France’s Montmorillon station, 5 km east.
A year in Sillars at a glance
Each month’s typical high and low in °C, at the Montmorillon station.
What a year in Sillars feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Montmorillon.
About 782 mm of rain a year
November is the wettest month and July the driest. About 22 days a year bring 10 mm or more. 7th wettest of 37 towns of 2,500+ in Vienne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montmorillon
36 frosts and 63 days of 25°C a year
On about 36 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 63 days a year reach 25°C, and 18 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Montmorillon: 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 Montmorillon
Montmorillon is 5 km east of Sillars. Every figure on this page is the station’s, not a measurement in Sillars itself.
| Station (Météo-France number) | Montmorillon (86165005) |
| Distance from the town | 5 km east |
| Station altitude | 153 m |
| Town altitude (its center) | 119 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
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 Sillars 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 Vienne.
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 |
|---|---|---|---|---|
| Sillars | Montmorillon | 26.3°C | 2.6°C | 782 mm |
| Montmorillon 7.2 km | same station | 26.3°C about the same | 2.6°C about the same | 782 mm |
| Valdivienne 14 km | same station | 26.3°C about the same | 2.6°C about the same | 782 mm |
| Chauvigny 19 km | same station | 26.3°C about the same | 2.6°C about the same | 782 mm |
| Nieuil-l'Espoir 26 km | Poitiers-Biard | 26.1°C about the same | 2.1°C 0.5°C colder | 695 mm |
| Saint-Julien-l'Ars 26 km | Poitiers-Biard | 26.1°C about the same | 2.1°C 0.5°C colder | 695 mm |
Sillars weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Montmorillon station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.2°C | 2.6°C | 5.4°C | 70 mm | 71 |
| February | 9.4°C | 2.2°C | 5.8°C | 56 mm | 104 |
| March | 13.3°C | 4.3°C | 8.8°C | 55 mm | 160 |
| April | 16.3°C | 6.3°C | 11.3°C | 66 mm | 191 |
| May | 20.0°C | 9.7°C | 14.9°C | 73 mm | 216 |
| June | 23.8°C | 13.0°C | 18.4°C | 64 mm | 234 |
| July | 26.3°C | 14.7°C | 20.5°C | 48 mm | 259 |
| August | 26.5°C | 14.6°C | 20.6°C | 55 mm | 237 |
| September | 22.5°C | 11.5°C | 17.0°C | 58 mm | 205 |
| October | 17.4°C | 9.3°C | 13.4°C | 78 mm | 136 |
| November | 11.9°C | 5.3°C | 8.6°C | 79 mm | 81 |
| December | 8.7°C | 3.0°C | 5.9°C | 79 mm | 76 |
| Year | 17.0°C | 8.0°C | 12.5°C | 782 mm | 1,969 |
Where Sillars’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Montmorillon, 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, Montmorillon, 5 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 Vienne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Sillars’s climate
How warm does Sillars get in summer?
August is the warmest month, with average highs of 26.5°C. About 63 days a year reach 25°C, more than 54% of mainland French towns, and about 18 reach 30°C.
How cold does Sillars get in winter?
February nights average 2.2°C. The air drops to 0°C or below on about 36 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Sillars get?
About 782 mm a year, more than 55% of mainland French towns. November is the wettest month (79 mm) and July the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montmorillon (5 km away), averages 1,969 hours of sunshine a year.
Are these figures for Sillars itself?
No: they are the normals of the Météo-France station matched to Sillars, Montmorillon, 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 MONTMORILLON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Sillars →
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.