Average annual temperature is 27.0 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: 19.9 °C
Number of sunny days: 73 days
Number of rainy days: 292 days
Look at detailed online map of Cornwall
* Weather data for Cornwall Jamaica is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 29.3 | 28.7 | 30.2 | 31.1 | 31.6 | 33.7 | 30.5 | 32.3 | 31.4 | 31.0 | 30.5 | 29.6 |
| Average daytime temperature (°C) | 27.9 | 28.1 | 28.5 | 29.4 | 30.4 | 30.5 | 30.0 | 30.5 | 30.7 | 30.1 | 29.0 | 28.0 |
| Average temperature (°C) | 25.2 | 25.2 | 25.0 | 25.9 | 27.0 | 27.9 | 28.6 | 28.7 | 28.7 | 28.2 | 27.4 | 26.5 |
| Average night temperature (°C) | 22.8 | 22.6 | 21.9 | 22.9 | 24.2 | 25.6 | 26.7 | 26.8 | 26.6 | 26.3 | 25.7 | 24.8 |
| Absolute minimum temperature (°C) | 20.1 | 20.1 | 19.9 | 21.2 | 22.8 | 24.0 | 24.4 | 25.4 | 25.2 | 24.8 | 23.4 | 23.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.5 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.0 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.8 | 11.0 | 11.5 | 11.1 | 10.0 | 11.8 | 11.1 | 10.9 | 10.3 | 9.0 | 9.2 |
| Precipitation (mm) | 15 | 23 | 61 | 34 | 146 | 99 | 19 | 65 | 46 | 62 | 136 | 105 |
| Sunny days | 9 | 6 | 8 | 5 | 4 | 4 | 14 | 8 | 2 | 1 | 6 | 6 |
| Rainy days | 22 | 22 | 23 | 25 | 27 | 26 | 17 | 23 | 28 | 30 | 24 | 25 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cornwall is at