Oissy gets fewer days of 25 degrees or more than 86% of mainland French towns
The coldest hours of a January night bottom out at 1.6°C on average. Rain is light here, less than falls on 84% of mainland French towns. Temperatures cover 22°C across the year, low to high. The heating season runs November to March: each of those months averages under 10°C.
Figures from Météo-France’s Amiens-Glisy station, 24 km east.
A year in Oissy at a glance
Each month’s typical high and low in °C, at the Amiens-Glisy station.
What a year in Oissy feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Amiens-Glisy.
About 647 mm of rain a year
December is the wettest month and April the driest. About 16 days a year bring 10 mm or more. 12th wettest of 24 towns of 2,500+ in Somme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Amiens-Glisy
45 frosts and 35 days of 25°C a year
On about 45 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 35 days a year reach 25°C, and 8 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Amiens-Glisy: 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 Amiens-Glisy
Amiens-Glisy is 24 km east of Oissy. Every figure on this page is the station’s, not a measurement in Oissy itself.
| Station (Météo-France number) | Amiens-Glisy (80379002) |
| Distance from the town | 24 km east |
| Station altitude | 60 m |
| Town altitude (its center) | 65 m |
| Period | 1991–2020 |
| Nearest station of any kind | 21 km |
| 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 Oissy 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 Somme.
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 |
|---|---|---|---|---|
| Oissy | Amiens-Glisy | 23.9°C | 1.6°C | 647 mm |
| Ailly-sur-Somme 11 km | same station | 23.9°C about the same | 1.6°C about the same | 647 mm |
| Flixecourt 13 km | Abbeville | 22.4°C 1.5°C cooler | 2.2°C 0.6°C milder | 806 mm |
| Saleux 14 km | same station | 23.9°C about the same | 1.6°C about the same | 647 mm |
| Salouël 15 km | same station | 23.9°C about the same | 1.6°C about the same | 647 mm |
| Amiens 18 km | same station | 23.9°C about the same | 1.6°C about the same | 647 mm |
| Rivery 20 km | same station | 23.9°C about the same | 1.6°C about the same | 647 mm |
Oissy weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Amiens-Glisy station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 1.6°C | 4.2°C | 49 mm | 64 |
| February | 7.8°C | 1.6°C | 4.7°C | 45 mm | 87 |
| March | 11.5°C | 3.4°C | 7.5°C | 45 mm | 147 |
| April | 15.2°C | 5.1°C | 10.1°C | 39 mm | 206 |
| May | 18.5°C | 8.4°C | 13.5°C | 56 mm | 203 |
| June | 21.6°C | 11.4°C | 16.5°C | 55 mm | 220 |
| July | 23.9°C | 13.4°C | 18.7°C | 59 mm | 224 |
| August | 24.0°C | 13.3°C | 18.7°C | 60 mm | 188 |
| September | 20.5°C | 10.7°C | 15.6°C | 48 mm | 168 |
| October | 15.6°C | 8.0°C | 11.8°C | 58 mm | 117 |
| November | 10.5°C | 4.7°C | 7.6°C | 60 mm | 71 |
| December | 7.1°C | 2.2°C | 4.7°C | 72 mm | 67 |
| Year | 15.2°C | 7.0°C | 11.1°C | 647 mm | 1,761 |
Where Oissy’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Amiens-Glisy, 24 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, Amiens-Glisy, 24 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 Somme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Oissy’s climate
How warm does Oissy get in summer?
August is the warmest month, with average highs of 24.0°C. About 35 days a year reach 25°C, fewer than 86% of mainland French towns, and about 8 reach 30°C.
How cold does Oissy get in winter?
January nights average 1.6°C. The air drops to 0°C or below on about 45 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Oissy get?
About 647 mm a year, less than 84% of mainland French towns. December is the wettest month (72 mm) and April the driest (39 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Amiens-Glisy (24 km away), averages 1,761 hours of sunshine a year.
Are these figures for Oissy itself?
No: they are the normals of the Météo-France station matched to Oissy, Amiens-Glisy, 24 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 AMIENS-GLISY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Oissy →
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.