Sisco sits near the top of mainland French towns for mild winters
Midsummer highs settle at about 28.0°C. About 97 days a year reach 25°C, more than in 86% of mainland French towns. The rainiest month is November; the driest is July. Garden chairs stay out from April to June and September to November, the months with highs of 17–25°C.
Figures from Météo-France’s Cap Sagro station, 2.5 km south-east.
A year in Sisco at a glance
Each month’s typical high and low in °C, at the Cap Sagro station.
What a year in Sisco feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cap Sagro.
About 772 mm of rain a year
November is the wettest month and July the driest. About 24 days a year bring 10 mm or more. 11th wettest of 16 towns of 2,500+ in Haute-Corse.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Bastia
under 1 frosts and 97 days of 25°C a year
On about under 1 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 97 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cap Sagro: 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 Cap Sagro
Cap Sagro is 2.5 km south-east of Sisco. Every figure on this page is the station’s, not a measurement in Sisco itself.
| Station (Météo-France number) | Cap Sagro (20281001) |
| Distance from the town | 2.5 km south-east |
| Station altitude | 111 m |
| Town altitude (its center) | 52 m |
| Period | 1991–2020 |
| Sunshine measured at | Bastia, 30 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 Sisco 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 Haute-Corse.
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 |
|---|---|---|---|---|
| Sisco | Cap Sagro | 28.0°C | 8.0°C | 772 mm |
| San-Martino-di-Lota 9.3 km | same station | 28.0°C about the same | 8.0°C about the same | 772 mm |
| Ville-di-Pietrabugno 11 km | same station | 28.0°C about the same | 8.0°C about the same | 772 mm |
| Bastia 14 km | same station | 28.0°C about the same | 8.0°C about the same | 772 mm |
| Furiani 18 km | Bastia | 29.4°C 1.4°C warmer | 5.4°C 2.6°C colder | 817 mm |
| Biguglia 22 km | Bastia | 29.4°C 1.4°C warmer | 5.4°C 2.6°C colder | 817 mm |
| Borgo 27 km | Bastia | 29.4°C 1.4°C warmer | 5.4°C 2.6°C colder | 817 mm |
Sisco weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cap Sagro station; sunshine at Bastia.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 13.2°C | 8.0°C | 10.6°C | 56 mm | 139 |
| February | 13.2°C | 7.4°C | 10.3°C | 62 mm | 159 |
| March | 15.0°C | 9.2°C | 12.1°C | 62 mm | 196 |
| April | 17.3°C | 11.5°C | 14.4°C | 71 mm | 220 |
| May | 21.1°C | 15.0°C | 18.1°C | 52 mm | 270 |
| June | 25.0°C | 18.7°C | 21.8°C | 38 mm | 306 |
| July | 28.0°C | 21.6°C | 24.8°C | 14 mm | 347 |
| August | 28.7°C | 22.2°C | 25.4°C | 23 mm | 314 |
| September | 25.2°C | 19.0°C | 22.1°C | 70 mm | 238 |
| October | 21.3°C | 15.9°C | 18.6°C | 111 mm | 182 |
| November | 17.1°C | 12.1°C | 14.6°C | 124 mm | 134 |
| December | 14.3°C | 9.3°C | 11.8°C | 90 mm | 139 |
| Year | 20.0°C | 14.2°C | 17.1°C | 772 mm | 2,645 |
Where Sisco’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cap Sagro, 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, Bastia, 30 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 Haute-Corse.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Sisco’s climate
How warm does Sisco get in summer?
August is the warmest month, with average highs of 28.7°C. About 97 days a year reach 25°C, more than 86% of mainland French towns, and about 15 reach 30°C.
How cold does Sisco get in winter?
February nights average 7.4°C. The air drops to 0°C or below on about under 1 nights a year, and about 0 days a year stay below freezing all day.
How much rain does Sisco get?
About 772 mm a year, more than 54% of mainland French towns. November is the wettest month (124 mm) and July the driest (14 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Bastia (30 km away), averages 2,645 hours of sunshine a year.
Are these figures for Sisco itself?
No: they are the normals of the Météo-France station matched to Sisco, Cap Sagro, 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 CAP SAGRO, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Sisco →
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.