Champaign in September
8.1out of 10
Yes, a good time to go
Warm and comfortable: highs around 26°C. Some rain: about 8 rainy days.
26°CAvg high
14°CAvg low
8Rainy days (77 mm)
12:15 hDaylight
06:40Sunrise · 18:55 Sunset
Why this score
- Warm and comfortable: highs around 26°C
- Some rain: about 8 rainy days
What to wear and pack
- T-shirts and light layers
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.5 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 | 2°C | -6°C | 69 mm | 8 | – | – | 4.3 |
| February | 5°C | -4°C | 60 mm | 8 | – | – | 4.9 |
| March | 11°C | 1°C | 85 mm | 10 | – | – | 5.9 |
| April | 18°C | 7°C | 114 mm | 12 | – | – | 6.7 |
| May | 24°C | 13°C | 119 mm | 13 | – | – | 7.1 |
| June | 28°C | 18°C | 106 mm | 12 | – | – | 7.4 |
| July | 29°C | 20°C | 92 mm | 10 | – | – | 7.6 |
| August | 29°C | 18°C | 74 mm | 9 | – | – | 7.9 |
| September | 26°C | 14°C | 77 mm | 8 | – | – | 8.1 |
| October | 19°C | 8°C | 84 mm | 9 | – | – | 7.5 |
| November | 11°C | 2°C | 83 mm | 9 | – | – | 6.1 |
| December | 5°C | -3°C | 65 mm | 9 | – | – | 4.8 |
Frequently asked questions
How hot is Champaign in September?
Daytime highs average 26°C and nights about 14°C.
When is the best time to visit Champaign?
The best months are September, August, July, October.