Last updated: March 2, 2024
Under the Köppen–Geiger climate classification Challes-les-Eaux features a oceanic climate (Cfb). Temperatures typically range between 0 °C (33 °F) and 19 °C (67 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 33 °C (93 °F). The average annual precipitation amounts to about 1725 mm (67.9 inches) and receives 161 rainy days on the 1 mm (0.04 inches) threshold annually. Challes-les-Eaux enjoys an average of 3613 hours of sunshine throughout the year, and daylight varies from 8 hours 45 minutes to 15 hours 36 minutes per day.
The warmest months in Challes-les-Eaux are June, July and August, with daily mean temperatures ranging from 18 to 19 °C (64 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (33 - 39 °F) throughout the day. On average each year, Challes-les-Eaux experiences 37 days above 25 °C (77.0 °F) and 82 days below 0 °C (32.0 °F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum | 14°C (58°F) |
18°C (65°F) |
21°C (69°F) |
24°C (76°F) |
29°C (84°F) |
33°C (91°F) |
33°C (93°F) |
33°C (92°F) |
27°C (81°F) |
23°C (74°F) |
20°C (68°F) |
13°C (57°F) |
| Mean maximum | 10°C (51°F) |
16°C (61°F) |
19°C (66°F) |
22°C (71°F) |
25°C (78°F) |
27°C (80°F) |
31°C (88°F) |
32°C (90°F) |
26°C (79°F) |
22°C (72°F) |
17°C (63°F) |
11°C (52°F) |
| Average high | 4°C (40°F) |
8°C (47°F) |
11°C (53°F) |
15°C (60°F) |
18°C (64°F) |
22°C (72°F) |
25°C (77°F) |
24°C (76°F) |
20°C (68°F) |
16°C (60°F) |
9°C (49°F) |
5°C (41°F) |
| Daily mean | 0°C (33°F) |
3°C (39°F) |
6°C (43°F) |
10°C (50°F) |
13°C (56°F) |
18°C (64°F) |
19°C (67°F) |
19°C (66°F) |
15°C (59°F) |
10°C (51°F) |
5°C (42°F) |
1°C (35°F) |
| Average low | -4°C (26°F) |
-1°C (30°F) |
1°C (34°F) |
3°C (38°F) |
7°C (45°F) |
12°C (54°F) |
13°C (56°F) |
13°C (56°F) |
10°C (50°F) |
6°C (43°F) |
2°C (35°F) |
-2°C (28°F) |
| Mean minimum | -11°C (13°F) |
-7°C (19°F) |
-6°C (21°F) |
-5°C (24°F) |
1°C (35°F) |
8°C (46°F) |
8°C (47°F) |
8°C (47°F) |
4°C (40°F) |
0°C (33°F) |
-4°C (26°F) |
-10°C (13°F) |
| Minimum | -17°C (2°F) |
-14°C (8°F) |
-17°C (2°F) |
-8°C (17°F) |
-1°C (30°F) |
7°C (44°F) |
8°C (46°F) |
7°C (45°F) |
-0°C (32°F) |
-2°C (28°F) |
-6°C (22°F) |
-13°C (9°F) |
Compare temperature, precipitation, sunshine, UV index in Challes-les-Eaux, Auvergne-Rhône-Alpes, France with other places around the world.
Challes-les-Eaux usually has the most precipitation in May, June and December, with an average of 17 rainy days and 209 mm (8.2 inches) of precipitation per month. The driest months in Challes-les-Eaux are February, April and September. On average, 102 mm (4.0 inches) of precipitation falls during these months.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average precipitation mm (inches) | 132 (5.2) | 120 (4.7) | 158 (6.2) | 92 (3.6) | 212 (8.3) | 164 (6.4) | 127 (5.0) | 127 (5.0) | 95 (3.7) | 125 (4.9) | 122 (4.8) | 251 (9.9) |
| Average precipitation days (≥ 1 mm) | 11 | 12 | 16 | 11 | 18 | 15 | 13 | 12 | 11 | 11 | 13 | 18 |
The sunniest months in Challes-les-Eaux are June, July and August, when the sun shines an average of 13 hours 5 minutes a day. Least sunny months in Challes-les-Eaux: January, November and December receive an average of 6 hours 7 minutes of sunshine daily.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean monthly sunshine hours | 159 | 229 | 299 | 344 | 359 | 396 | 417 | 390 | 330 | 282 | 211 | 192 |
| Mean daily daylight hours | 9h 8m | 10h 22m | 11h 56m | 13h 32m | 14h 54m | 15h 36m | 15h 14m | 14h 1m | 12h 29m | 10h 53m | 9h 29m | 8h 45m |
Challes-les-Eaux experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High 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 Challes-les-Eaux UV Index data.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (month maximum) | 2 | 4 | 6 | 7 | 8 | 10 | 9 | 9 | 7 | 5 | 3 | 2 |
Discover in-depth weather details for every month in Challes-les-Eaux. 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 Challes-les-Eaux'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.