Average annual temperature is 27.1 °C
Absolute maximum temperature: 30.3 °C
Absolute minimum temperature: 22.3 °C
Number of sunny days: 9 days
Number of rainy days: 356 days
Look at detailed online map of Palmyra Atoll
* Weather data for Palmyra Atoll U.S. Minor Outlying Islands 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 | 27.7 | 28.1 | 28.1 | 28.6 | 28.8 | 28.9 | 29.6 | 30.1 | 29.5 | 30.3 | 29.5 |
| Average daytime temperature (°C) | 26.7 | 26.7 | 27.4 | 27.6 | 28.0 | 28.2 | 28.0 | 28.2 | 28.4 | 28.5 | 28.7 | 28.5 |
| Average temperature (°C) | 25.9 | 25.9 | 26.7 | 26.9 | 27.3 | 27.5 | 27.3 | 27.3 | 27.5 | 27.5 | 27.7 | 27.6 |
| Average night temperature (°C) | 24.9 | 24.7 | 25.7 | 25.8 | 26.4 | 26.6 | 26.4 | 26.1 | 26.4 | 26.3 | 26.5 | 26.6 |
| Absolute minimum temperature (°C) | 22.3 | 22.8 | 23.9 | 24.9 | 25.0 | 25.0 | 25.0 | 24.8 | 25.1 | 24.8 | 24.9 | 25.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 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 | 12.4 | 12.3 | 12.2 | 12.0 | 11.9 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 8.5 | 9.5 | 10.5 | 9.7 | 9.8 | 10.1 | 10.0 | 8.9 | 8.3 | 8.6 | 7.4 | 6.4 |
| Precipitation (mm) | 358 | 332 | 177 | 293 | 317 | 262 | 274 | 373 | 489 | 494 | 706 | 759 |
| Sunny days | 1 | 0 | 2 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
| Rainy days | 30 | 28 | 29 | 30 | 30 | 29 | 30 | 30 | 29 | 30 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Palmyra Atoll is at