The region: Ajoie
Ajoie (Jura): the weather above is computed at the centre of the region (450 m). Below you will find the forecasts for the 18 municipalities, 0 ski resorts, 0 lakes and 0 passes or summits within 12 km — the terrain makes the weather vary a lot from one valley to the next: use the page of the exact place.
Climate of Ajoie: 1991–2020 normals
In Ajoie (450 m), the mean annual temperature is 10.2 °C. The warmest month is July (19.0 °C on average) and the coldest January (2.0 °C). About 988 mm of precipitation falls per year, peaking in May (100 mm) with a minimum in February (61 mm). The sun shines for about 1682 hours a year, mostly in July (236 h). On average there are 79 frost days and 7 hot days (≥ 30 °C) per year. The mean monthly maximum reaches 31.9 °C and the absolute minimum −9.4 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | 2.0 °C | 13.2 °C | −9.4 °C | 64 | 63 | 19 | 0 |
| Feb | 2.7 °C | 14.5 °C | −8.1 °C | 61 | 85 | 17 | 0 |
| Mar | 6.1 °C | 18.9 °C | −4.6 °C | 64 | 133 | 11 | 0 |
| Apr | 9.5 °C | 22.8 °C | −1.4 °C | 73 | 166 | 4 | 0 |
| May | 13.3 °C | 26.3 °C | 2.7 °C | 100 | 183 | 0 | 2 |
| Jun | 16.9 °C | 29.9 °C | 6.6 °C | 94 | 210 | 0 | 8 |
| Jul | 19.0 °C | 31.9 °C | 9.1 °C | 91 | 236 | 0 | 13 |
| Aug | 18.7 °C | 31.5 °C | 8.5 °C | 99 | 220 | 0 | 12 |
| Sep | 14.6 °C | 26.3 °C | 5.2 °C | 82 | 156 | 0 | 3 |
| Oct | 10.7 °C | 22.8 °C | 0.6 °C | 91 | 111 | 1 | 0 |
| Nov | 5.8 °C | 17.5 °C | −3.7 °C | 84 | 65 | 9 | 0 |
| Dec | 3.0 °C | 13.8 °C | −7.8 °C | 84 | 54 | 17 | 0 |
| Year | 10.2 °C | 31.9 °C | −9.4 °C | 988 | 1682 | 79 | 38 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Fahy (10 km, 596 m), Delémont (22 km, 439 m), Chasseral (32 km, 1594 m), adjusted to the elevation of Ajoie (450 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Municipalities in the region
- Porrentruy 0 km · 481 m
- Fontenais 2 km · 476 m
- Courtedoux 2 km · 492 m
- Courchavon 3 km · 559 m
- Coeuve 4 km · 443 m
- Alle 4 km · 471 m
- Courgenay 5 km · 513 m
- Basse-Allaine 6 km · 529 m
- Bure 6 km · 557 m
- Haute-Ajoie 6 km · 482 m
- Damphreux-Lugnez 6 km · 444 m
- Vendlincourt 7 km · 458 m
- Cornol 7 km · 512 m
- Fahy 8 km · 567 m
- Clos du Doubs 9 km · 517 m
- Boncourt 9 km · 419 m
- Basse-Vendline 9 km · 423 m
- Grandfontaine 11 km · 571 m
Frequently asked questions about the weather: Ajoie
What is the weather like in Ajoie today?
The weather at the top of the page gives conditions at the centre of the region (450 m); for a specific town pick it in the “Municipalities in the region” list — each page has its own hourly and 15-day forecast.
What is the climate of Ajoie?
At the centre of the region (450 m) the mean annual temperature is 10.2 °C with 988 mm of precipitation a year; the warmest month is July (19.0 °C) and the coldest January (2.0 °C). Valleys and summits differ markedly.
What is the warmest month in Ajoie?
The warmest month in Ajoie is July, averaging 19.0 °C (1991–2020 normal). The coldest is January at 2.0 °C.
How much does it rain in Ajoie per year?
Ajoie receives about 988 mm of precipitation a year. The wettest month is May (100 mm), the driest February (61 mm).
When is the best time to visit Ajoie?
For warmth and sunshine: July (19.0 °C on average, 236 h of sun). The coldest month is January (2.0 °C). Check the 15-day forecast above for your dates.