Average annual temperature is 10.0 °C
Absolute maximum temperature: 31.6 °C
Absolute minimum temperature: -8.7 °C
Number of sunny days: 158 days
Number of rainy days: 202 days
Number of snow days: 5 days
Look at detailed online map of Barnston Island
* Weather data for Barnston Island Canada is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 12.4 | 8.5 | 15.4 | 23.2 | 31.4 | 29.7 | 29.5 | 31.6 | 26.5 | 22.7 | 13.5 | 12.9 |
| Average daytime temperature (°C) | 6.5 | 5.0 | 10.0 | 11.3 | 21.2 | 21.6 | 25.1 | 25.6 | 20.3 | 15.0 | 8.7 | 7.6 |
| Average temperature (°C) | 3.8 | 2.1 | 4.2 | 6.4 | 14.8 | 15.5 | 18.7 | 19.0 | 14.6 | 10.3 | 5.2 | 5.0 |
| Average night temperature (°C) | 1.7 | 0.1 | 0.2 | 3.1 | 9.9 | 10.7 | 13.5 | 14.2 | 10.8 | 7.4 | 3.0 | 3.3 |
| Absolute minimum temperature (°C) | -6.2 | -8.6 | -8.7 | -2.3 | 4.7 | 6.5 | 10.5 | 11.4 | 6.7 | -0.9 | -1.2 | -1.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 16.0 | 16.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 |
| Daylight mean duration (h) | 8.7 | 10.1 | 11.9 | 13.7 | 15.3 | 16.2 | 15.8 | 14.4 | 12.6 | 10.8 | 9.2 | 8.3 |
| Daylight minimum duration (h) | 8.0 | 9.0 | 10.0 | 12.0 | 14.0 | 15.0 | 15.0 | 13.0 | 11.0 | 9.0 | 8.0 | 8.0 |
| Sunshine mean duration (h) | 2.4 | 2.9 | 6.8 | 5.8 | 11.1 | 11.0 | 13.2 | 11.6 | 8.5 | 5.8 | 4.2 | 1.8 |
| Precipitation (mm) | 177 | 220 | 150 | 246 | 31 | 45 | 40 | 36 | 119 | 199 | 311 | 321 |
| Sunny days | 6 | 3 | 9 | 5 | 19 | 17 | 27 | 24 | 14 | 15 | 14 | 5 |
| Rainy days | 24 | 22 | 21 | 25 | 12 | 13 | 4 | 7 | 16 | 16 | 16 | 26 |
| Snow days | 1 | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Barnston Island during the most sunny months:
Months with the longest average daylight duration in Barnston Island:
The largest precipitation sum in Barnston Island is at