Average annual temperature is 7.6 °C
Absolute maximum temperature: 27.4 °C
Absolute minimum temperature: -12.4 °C
Number of sunny days: 142 days
Number of rainy days: 187 days
Number of snow days: 36 days
Look at detailed online map of Sya
* Weather data for Sya Sweden is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 6.5 | 8.6 | 10.3 | 18.6 | 23.8 | 27.4 | 25.5 | 25.2 | 23.9 | 17.4 | 9.2 | 8.2 |
| Average daytime temperature (°C) | 2.7 | 3.2 | 3.6 | 10.1 | 17.6 | 22.9 | 20.1 | 19.0 | 19.2 | 9.4 | 3.0 | 0.6 |
| Average temperature (°C) | 1.1 | 0.5 | 0.4 | 4.8 | 12.3 | 17.6 | 16.1 | 15.8 | 15.5 | 6.6 | 1.2 | -1.4 |
| Average night temperature (°C) | -1.1 | -2.0 | -3.1 | -0.3 | 6.2 | 11.1 | 12.2 | 12.6 | 12.1 | 4.0 | -0.8 | -4.1 |
| Absolute minimum temperature (°C) | -6.4 | -7.7 | -10.9 | -9.9 | -1.8 | 5.5 | 9.9 | 9.8 | 8.4 | -1.5 | -8.7 | -12.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 18.0 | 18.0 | 16.0 | 14.0 | 11.0 | 8.0 | 6.0 |
| Daylight mean duration (h) | 7.2 | 9.4 | 11.8 | 14.4 | 16.8 | 18.1 | 17.5 | 15.3 | 12.8 | 10.3 | 7.9 | 6.5 |
| Daylight minimum duration (h) | 6.0 | 8.0 | 10.0 | 13.0 | 15.0 | 17.0 | 16.0 | 14.0 | 11.0 | 9.0 | 6.0 | 6.0 |
| Sunshine mean duration (h) | 1.8 | 4.5 | 5.2 | 9.7 | 13.8 | 14.3 | 12.7 | 7.5 | 8.2 | 4.4 | 1.7 | 0.5 |
| Precipitation (mm) | 94 | 26 | 91 | 37 | 17 | 36 | 92 | 140 | 53 | 108 | 54 | 64 |
| Sunny days | 7 | 15 | 9 | 18 | 25 | 21 | 5 | 3 | 16 | 8 | 8 | 7 |
| Rainy days | 21 | 9 | 12 | 10 | 6 | 9 | 26 | 28 | 14 | 23 | 15 | 14 |
| Snow days | 3 | 4 | 10 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 10 |
The best time to visit Sya during the most sunny months:
Months with the longest average daylight duration in Sya:
The largest precipitation sum in Sya is at