Saint Charles in December
5.7out of 10
Possible, with caveats
Cool: highs only around 9°C. Frequent rain: about 9 rainy days.
9°CAvg high
2°CAvg low
9Rainy days (85 mm)
9:19 hDaylight
07:24Sunrise · 16:43 Sunset
Why this score
- Cool: highs only around 9°C
- Frequent rain: about 9 rainy days
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in December is fairly consistent from year to year (2.7 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 7°C | 0°C | 77 mm | 9 | – | – | 5.2 |
| February | 9°C | 0°C | 71 mm | 8 | – | – | 5.7 |
| March | 13°C | 4°C | 98 mm | 10 | – | – | 6.2 |
| April | 19°C | 10°C | 84 mm | 10 | – | – | 7.3 |
| May | 24°C | 15°C | 86 mm | 10 | – | – | 7.7 |
| June | 28°C | 20°C | 90 mm | 11 | – | – | 7.5 |
| July | 31°C | 23°C | 96 mm | 13 | – | – | 6.9 |
| August | 29°C | 22°C | 93 mm | 10 | – | – | 7.5 |
| September | 26°C | 18°C | 102 mm | 9 | – | – | 7.7 |
| October | 20°C | 12°C | 87 mm | 8 | – | – | 7.7 |
| November | 14°C | 6°C | 74 mm | 8 | – | – | 6.8 |
| December | 9°C | 2°C | 85 mm | 9 | – | – | 5.7 |
Frequently asked questions
How hot is Saint Charles in December?
Daytime highs average 9°C and nights about 2°C.
When is the best time to visit Saint Charles?
The best months are May, September, October, June.