More rain falls on Pirajoux than on 87% of mainland French towns: 984 mm a year
The depth of winter brings overnight lows near 0.2°C. Rain peaks in November and eases off in March. In January, nights here are colder than in 82% of mainland French towns. Warm coats and heating bills mark the months from November to March, when means dip under 10°C.
Figures from Météo-France’s Romenay station, 21 km north-west.
A year in Pirajoux at a glance
Each month’s typical high and low in °C, at the Romenay station.
What a year in Pirajoux feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Romenay.
About 984 mm of rain a year
November is the wettest month and March the driest. About 31 days a year bring 10 mm or more. 28th wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Mâcon
A frosty town: 59 frosts and 74 days of 25°C a year
On about 59 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 74 days a year reach 25°C, and 23 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Romenay: 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 Romenay
Romenay is 21 km north-west of Pirajoux. Every figure on this page is the station’s, not a measurement in Pirajoux itself.
| Station (Météo-France number) | Romenay (71373001) |
| Distance from the town | 21 km north-west |
| Station altitude | 210 m |
| Town altitude (its center) | 218 m |
| Period | 1991–2020 |
| Nearest station of any kind | 13 km |
| Sunshine measured at | Mâcon, 39 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 Pirajoux 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 Ain.
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 |
|---|---|---|---|---|
| Pirajoux | Romenay | 27.2°C | 0.2°C | 984 mm |
| Saint-Étienne-du-Bois 11 km | Ceyzériat | 26.6°C 0.6°C cooler | 0.1°C about the same | 1,033 mm |
| Montrevel-en-Bresse 13 km | same station | 27.2°C about the same | 0.2°C about the same | 984 mm |
| Attignat 14 km | Ceyzériat | 26.6°C 0.6°C cooler | 0.1°C about the same | 1,033 mm |
| Viriat 16 km | Ceyzériat | 26.6°C 0.6°C cooler | 0.1°C about the same | 1,033 mm |
| Polliat 19 km | Ceyzériat | 26.6°C 0.6°C cooler | 0.1°C about the same | 1,033 mm |
| Bourg-en-Bresse 20 km | Ceyzériat | 26.6°C 0.6°C cooler | 0.1°C about the same | 1,033 mm |
Pirajoux weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Romenay station; sunshine at Mâcon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.3°C | 0.2°C | 3.2°C | 78 mm | 62 |
| February | 8.2°C | 0.2°C | 4.2°C | 63 mm | 96 |
| March | 13.1°C | 2.9°C | 8.0°C | 63 mm | 164 |
| April | 16.9°C | 5.4°C | 11.2°C | 77 mm | 192 |
| May | 20.8°C | 9.6°C | 15.2°C | 97 mm | 217 |
| June | 24.8°C | 13.2°C | 19.0°C | 76 mm | 249 |
| July | 27.2°C | 14.8°C | 21.0°C | 75 mm | 275 |
| August | 27.0°C | 14.4°C | 20.7°C | 80 mm | 251 |
| September | 22.3°C | 10.7°C | 16.5°C | 79 mm | 195 |
| October | 16.8°C | 7.9°C | 12.4°C | 103 mm | 120 |
| November | 10.4°C | 3.6°C | 7.0°C | 107 mm | 71 |
| December | 6.7°C | 0.9°C | 3.8°C | 86 mm | 52 |
| Year | 16.7°C | 7.0°C | 11.8°C | 984 mm | 1,943 |
Where Pirajoux’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Romenay, 21 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, Mâcon, 39 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 Ain.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Pirajoux’s climate
How warm does Pirajoux get in summer?
July is the warmest month, with average highs of 27.2°C. About 74 days a year reach 25°C, more than 67% of mainland French towns, and about 23 reach 30°C.
How cold does Pirajoux get in winter?
January nights average 0.2°C. The air drops to 0°C or below on about 59 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Pirajoux get?
About 984 mm a year, more than 87% of mainland French towns. November is the wettest month (107 mm) and March the driest (63 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Mâcon (39 km away), averages 1,943 hours of sunshine a year.
Are these figures for Pirajoux itself?
No: they are the normals of the Météo-France station matched to Pirajoux, Romenay, 21 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 ROMENAY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Pirajoux →
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.