Average annual temperature is 23.7 °C
Absolute maximum temperature: 33.0 °C
Absolute minimum temperature: 15.0 °C
Number of sunny days: 43 days
Number of rainy days: 322 days
Look at detailed online map of Rock River
* Weather data for Rock 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) | 29.0 | 29.6 | 30.3 | 30.8 | 31.8 | 32.2 | 33.0 | 32.7 | 33.0 | 32.6 | 30.3 | 29.1 |
| Average daytime temperature (°C) | 27.0 | 27.5 | 27.8 | 28.3 | 29.3 | 29.0 | 30.8 | 31.0 | 31.1 | 29.5 | 28.3 | 27.1 |
| Average temperature (°C) | 21.6 | 21.9 | 21.9 | 22.5 | 23.9 | 24.6 | 25.5 | 25.6 | 25.3 | 24.6 | 23.6 | 22.7 |
| Average night temperature (°C) | 18.2 | 18.1 | 17.7 | 18.6 | 20.2 | 21.4 | 21.7 | 22.2 | 21.8 | 21.6 | 20.8 | 19.9 |
| Absolute minimum temperature (°C) | 15.2 | 15.0 | 15.5 | 16.5 | 19.0 | 19.7 | 20.3 | 21.3 | 20.6 | 20.3 | 18.2 | 18.3 |
| 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) | 10.1 | 10.1 | 10.1 | 11.2 | 10.8 | 9.8 | 11.5 | 10.6 | 10.5 | 9.8 | 8.9 | 9.4 |
| Precipitation (mm) | 27 | 26 | 99 | 102 | 159 | 163 | 77 | 98 | 106 | 132 | 160 | 48 |
| Sunny days | 12 | 8 | 9 | 0 | 1 | 1 | 4 | 2 | 0 | 0 | 3 | 3 |
| Rainy days | 19 | 20 | 22 | 30 | 30 | 29 | 27 | 29 | 30 | 31 | 27 | 28 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Rock River is at