Few mainland French towns get more days of 25 degrees or more than Olmo
On a normal January night the air cools to about 0.4°C. Of the 16 towns of 2,500+ in Haute-Corse, it has the coldest January nights. Seasons differ by 31°C, from the coldest nights to the warmest afternoons. Frost greets about 54 mornings a year, so leave time to clear the car.
These are the figures of Météo-France’s Corte station, 30 km south-west; at that distance they describe the area more than the town.
A year in Olmo at a glance
Each month’s typical high and low in °C, at the Corte station.
What a year in Olmo feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Corte.
About 824 mm of rain a year
November is the wettest month and August the driest. About 25 days a year bring 10 mm or more. The wettest of 16 towns of 2,500+ in Haute-Corse.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Bastia
A frosty town: 54 frosts and 123 days of 25°C a year
On about 54 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 123 days a year reach 25°C, and 58 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Corte: 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 Corte
Corte is 30 km south-west of Olmo. Every figure on this page is the station’s, not a measurement in Olmo itself.
| Station (Météo-France number) | Corte (20096008) |
| Distance from the town | 30 km south-west |
| Station altitude | 350 m |
| Town altitude (its center) | 402 m |
| Period | 1991–2020 |
| Nearest station of any kind | 7.3 km |
| Sunshine measured at | Bastia, 7.3 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 Olmo 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Olmo | Corte | 31.2°C | 0.4°C | 824 mm |
| Vescovato 3.8 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
| Lucciana 6.1 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
| Borgo 8 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
| Penta-di-Casinca 9.8 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
| Biguglia 13 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
| Furiani 17 km | Bastia | 29.4°C 1.8°C cooler | 5.4°C 5°C milder | 817 mm |
Olmo weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Corte station; sunshine at Bastia.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 12.2°C | 0.4°C | 6.3°C | 71 mm | 139 |
| February | 13.0°C | 0.4°C | 6.7°C | 65 mm | 159 |
| March | 15.8°C | 2.7°C | 9.3°C | 66 mm | 196 |
| April | 18.6°C | 5.0°C | 11.8°C | 72 mm | 220 |
| May | 23.2°C | 8.6°C | 15.9°C | 59 mm | 270 |
| June | 27.8°C | 12.2°C | 20.0°C | 32 mm | 306 |
| July | 31.2°C | 14.6°C | 22.9°C | 36 mm | 347 |
| August | 31.5°C | 14.9°C | 23.2°C | 26 mm | 314 |
| September | 26.4°C | 11.8°C | 19.1°C | 51 mm | 238 |
| October | 21.6°C | 8.8°C | 15.2°C | 99 mm | 182 |
| November | 16.1°C | 4.7°C | 10.4°C | 139 mm | 134 |
| December | 12.7°C | 1.5°C | 7.1°C | 108 mm | 139 |
| Year | 20.8°C | 7.1°C | 14.0°C | 824 mm | 2,645 |
Where Olmo’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Corte, 30 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, 7.3 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 Olmo’s climate
How warm does Olmo get in summer?
August is the warmest month, with average highs of 31.5°C. About 123 days a year reach 25°C, more than 97% of mainland French towns, and about 58 reach 30°C.
How cold does Olmo get in winter?
January nights average 0.4°C. The air drops to 0°C or below on about 54 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Olmo get?
About 824 mm a year, more than 66% of mainland French towns. November is the wettest month (139 mm) and August the driest (26 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Bastia (7.3 km away), averages 2,645 hours of sunshine a year.
Are these figures for Olmo itself?
No: they are the normals of the Météo-France station matched to Olmo, Corte, 30 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 CORTE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Olmo →
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.