Average annual temperature is 27.0 °C
Absolute maximum temperature: 32.3 °C
Absolute minimum temperature: 21.9 °C
Number of sunny days: 24 days
Number of rainy days: 341 days
Look at detailed online map of Cullen
* Weather data for Cullen Guyana is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.1 | 28.7 | 28.7 | 29.4 | 29.4 | 29.4 | 30.0 | 31.4 | 32.2 | 32.3 | 31.2 | 30.0 |
| Average daytime temperature (°C) | 26.8 | 27.2 | 27.8 | 28.2 | 28.3 | 28.3 | 29.1 | 30.3 | 31.1 | 31.4 | 30.0 | 29.0 |
| Average temperature (°C) | 25.1 | 25.6 | 26.1 | 26.5 | 26.6 | 26.5 | 27.0 | 27.9 | 28.8 | 29.0 | 27.8 | 27.1 |
| Average night temperature (°C) | 23.5 | 24.1 | 24.6 | 25.0 | 25.1 | 24.7 | 24.9 | 26.0 | 27.0 | 27.0 | 26.0 | 25.3 |
| Absolute minimum temperature (°C) | 21.9 | 22.4 | 22.1 | 23.4 | 24.1 | 23.3 | 23.4 | 23.7 | 24.4 | 25.1 | 24.3 | 23.7 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 | 12.5 | 12.3 | 12.2 | 12.0 | 11.8 | 11.7 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 9.1 | 9.7 | 10.7 | 10.0 | 9.0 | 9.8 | 11.1 | 11.1 | 11.3 | 10.9 | 10.5 | 10.3 |
| Precipitation (mm) | 264 | 186 | 80 | 159 | 325 | 372 | 219 | 134 | 35 | 57 | 138 | 158 |
| Sunny days | 0 | 3 | 7 | 1 | 0 | 0 | 0 | 3 | 7 | 2 | 1 | 0 |
| Rainy days | 31 | 25 | 24 | 29 | 31 | 30 | 31 | 28 | 23 | 29 | 29 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cullen is at