Climate of British Indian Ocean — Month by Month
Country-wide average for British Indian Ocean Territory.
British Indian Ocean Territory has a tropical climate. Country-wide average temperatures range from 26.5°C / 79.7°F in July to 28°C / 82.4°F in March, with annual rainfall totalling around 2160 mm / 85 in — driest in June (80 mm / 3.1 in), wettest in January (300 mm / 11.8 in). These are national averages; regional variation can be substantial, especially in geographically diverse countries. For city-level detail see the cities section below, and for state or province breakdowns follow the subdivisions link if available.
Best time to visit British Indian Ocean Territory →
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 27°C80.6°F | 300 mm11.8″ | Tropical |
| February | 27.5°C81.5°F | 250 mm9.8″ | Tropical |
| March | 28°C82.4°F | 200 mm7.9″ | Tropical |
| April | 28°C82.4°F | 150 mm5.9″ | Tropical |
| May | 27.5°C81.5°F | 100 mm3.9″ | Tropical |
| June | 27°C80.6°F | 80 mm3.1″ | Tropical |
| July | 26.5°C79.7°F | 80 mm3.1″ | Tropical |
| August | 26.5°C79.7°F | 100 mm3.9″ | Tropical |
| September | 26.5°C79.7°F | 150 mm5.9″ | Tropical |
| October | 27°C80.6°F | 200 mm7.9″ | Tropical |
| November | 27°C80.6°F | 250 mm9.8″ | Tropical |
| December | 27°C80.6°F | 300 mm11.8″ | Tropical |
Frequently asked questions
What is the best time to visit British Indian Ocean Territory?
British Indian Ocean Territory does not have a clear sunny-and-dry window by our cutoffs. The warmest month is March at 28°C / 82.4°F, and the driest is June at 80 mm / 3.1 in — likely your best travel window.
What is the climate of British Indian Ocean Territory?
British Indian Ocean Territory has country-wide monthly average temperatures ranging from 26.5°C / 79.7°F in July to 28°C / 82.4°F in March. Annual rainfall averages about 2160 mm / 85 in, with the wettest month being January (300 mm / 11.8 in) and the driest June (80 mm / 3.1 in). Regional variation within British Indian Ocean Territory can be significant — see subdivision or city pages for detail.
What is the hottest month in British Indian Ocean Territory?
The hottest month in British Indian Ocean Territory is March, with a country-wide average temperature of 28°C / 82.4°F.
What is the coldest month in British Indian Ocean Territory?
The coldest month in British Indian Ocean Territory is July, with a country-wide average temperature of 26.5°C / 79.7°F.
When does it rain most in British Indian Ocean Territory?
The wettest month in British Indian Ocean Territory is January, averaging about 300 mm / 11.8 in of rain. The driest is June with about 80 mm / 3.1 in.