Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Guillestre features a subarctic climate (Dfc). Temperatures typically range between -8 °C (17 °F) and 13 °C (56 °F) through the year, but rarely can drop to -24 °C (-12 °F) or can rise to as high as 25 °C (76 °F). The average annual precipitation amounts to about 1007 mm (39.6 inches) and receives 128 rainy days on the 1 mm (0.04 inches) threshold annually. Guillestre enjoys an average of 3841 hours of sunshine throughout the year, and daylight varies from 8 hours 49 minutes to 15 hours 31 minutes per day.
The warmest months in Guillestre are June, July and August, with daily mean temperatures ranging from 10 to 13 °C (50 - 56 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 23 °F) throughout the day. On average each year, Guillestre experiences 0 days above 25 °C (77.0 °F) and 202 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 5°C (41°F) |
9°C (49°F) |
10°C (50°F) |
12°C (54°F) |
19°C (66°F) |
25°C (76°F) |
23°C (74°F) |
24°C (76°F) |
22°C (72°F) |
19°C (67°F) |
13°C (55°F) |
3°C (38°F) |
| Mean maximum | 1°C (34°F) |
6°C (42°F) |
8°C (46°F) |
9°C (49°F) |
15°C (59°F) |
19°C (67°F) |
22°C (72°F) |
23°C (74°F) |
20°C (68°F) |
16°C (62°F) |
8°C (46°F) |
2°C (36°F) |
| Average high | -4°C (24°F) |
-1°C (31°F) |
1°C (34°F) |
4°C (40°F) |
8°C (47°F) |
15°C (59°F) |
18°C (66°F) |
19°C (67°F) |
15°C (59°F) |
10°C (50°F) |
1°C (34°F) |
-4°C (26°F) |
| Daily mean | -8°C (17°F) |
-5°C (23°F) |
-3°C (26°F) |
0°C (32°F) |
4°C (40°F) |
10°C (50°F) |
13°C (55°F) |
13°C (56°F) |
9°C (48°F) |
4°C (40°F) |
-3°C (27°F) |
-7°C (20°F) |
| Average low | -12°C (11°F) |
-9°C (17°F) |
-7°C (19°F) |
-4°C (25°F) |
-1°C (31°F) |
5°C (41°F) |
7°C (44°F) |
7°C (45°F) |
4°C (39°F) |
-0°C (32°F) |
-7°C (20°F) |
-10°C (14°F) |
| Mean minimum | -20°C (-4°F) |
-15°C (5°F) |
-15°C (5°F) |
-11°C (13°F) |
-6°C (21°F) |
-0°C (32°F) |
2°C (37°F) |
2°C (36°F) |
-3°C (28°F) |
-6°C (21°F) |
-17°C (2°F) |
-19°C (-3°F) |
| Minimum | -24°C (-12°F) |
-20°C (-4°F) |
-21°C (-6°F) |
-15°C (6°F) |
-9°C (17°F) |
-3°C (28°F) |
1°C (33°F) |
0°C (33°F) |
-6°C (22°F) |
-12°C (10°F) |
-23°C (-10°F) |
-23°C (-10°F) |
Compare temperature, precipitation, sunshine, UV index in Guillestre, Provence-Alpes-Côte d'Azur, France with other places around the world.
Guillestre usually has the most precipitation in May, November and December, with an average of 14 rainy days and 122 mm (4.8 inches) of precipitation per month. The driest months in Guillestre are February, August and September. On average, 47 mm (1.9 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 65 (2.6) | 57 (2.3) | 93 (3.7) | 85 (3.3) | 130 (5.1) | 100 (3.9) | 61 (2.4) | 41 (1.6) | 44 (1.7) | 95 (3.7) | 114 (4.5) | 122 (4.8) |
| Average precipitation days (≥ 1 mm) | 8 | 9 | 10 | 10 | 16 | 16 | 10 | 9 | 7 | 7 | 13 | 13 |
The sunniest months in Guillestre are June, July and August, when the sun shines an average of 13 hours 32 minutes a day. Least sunny months in Guillestre: January, November and December receive an average of 7 hours 10 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 196 | 253 | 325 | 337 | 385 | 405 | 436 | 404 | 338 | 295 | 227 | 235 |
| Mean daily daylight hours | 9h 12m | 10h 25m | 11h 56m | 13h 30m | 14h 50m | 15h 31m | 15h 9m | 13h 58m | 12h 28m | 10h 55m | 9h 32m | 8h 49m |
Guillestre experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Guillestre UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 3 | 5 | 7 | 9 | 10 | 11 | 10 | 10 | 8 | 6 | 3 | 2 |
Discover in-depth weather details for every month in Guillestre. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Guillestre's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.
Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.