Average annual temperature is 22.6 °C
Absolute maximum temperature: 31.7 °C
Absolute minimum temperature: 15.3 °C
Number of sunny days: 44 days
Number of rainy days: 321 days
Look at detailed online map of Mountain River
* Weather data for Mountain River 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) | 27.8 | 28.2 | 28.7 | 29.1 | 30.9 | 30.7 | 31.5 | 31.5 | 31.2 | 31.7 | 29.0 | 27.5 |
| Average daytime temperature (°C) | 25.7 | 26.2 | 26.4 | 27.0 | 27.9 | 27.6 | 29.4 | 29.5 | 29.7 | 28.3 | 26.9 | 25.6 |
| Average temperature (°C) | 20.8 | 21.0 | 21.1 | 21.6 | 22.8 | 23.5 | 24.4 | 24.5 | 24.3 | 23.5 | 22.5 | 21.6 |
| Average night temperature (°C) | 17.8 | 17.7 | 17.4 | 18.0 | 19.5 | 20.6 | 21.0 | 21.5 | 21.2 | 20.8 | 20.0 | 19.1 |
| Absolute minimum temperature (°C) | 15.3 | 15.4 | 16.2 | 16.5 | 18.8 | 19.5 | 19.9 | 20.3 | 19.9 | 19.6 | 16.6 | 18.1 |
| 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 | 11.6 | 12.0 | 12.6 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| 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) | 10.2 | 10.2 | 10.3 | 11.4 | 11.2 | 10.2 | 11.6 | 11.0 | 10.7 | 10.0 | 8.9 | 9.6 |
| Precipitation (mm) | 32 | 27 | 81 | 99 | 142 | 164 | 73 | 86 | 113 | 110 | 186 | 43 |
| Sunny days | 10 | 8 | 10 | 2 | 1 | 2 | 3 | 1 | 0 | 1 | 3 | 3 |
| Rainy days | 21 | 20 | 21 | 28 | 30 | 28 | 28 | 30 | 30 | 30 | 27 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mountain River is at