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Weather in British Indian Ocean Territory - today, tomorrow and 14-day forecast

Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

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Next days in British Indian Ocean Territory

today🌧️ 27°💧 13.5 mm
Sun🌧️ 27°💧 8.5 mm
Mon☁️ 27°💧 2 mm
Tue☁️ 27°💧 0.5 mm
Wed🌧️ 27°💧 1.6 mm
Thu🌧️ 27°💧 2.4 mm
Fri☁️ 27°💧 0.5 mm
Sat☁️ 27°💧 0.2 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Saturday 5 Sept in British Indian Ocean Territory, the forecast high is 27°C. Typical daytime temperatures at this time of year range from 27°C to 28°C, so it will be warmer than usual. It is warmer than 78% of similar days.

27°Cwarmer than usual
usually 27°C–28°C
warmer than 78% of similar days
night: warmer than usual rain: more rain than usual wind: typical
27°Cnear normal
usually 27°C–28°C
night: exceptionally warm rain: more rain than usual wind: typical
27°Cnear normal
usually 27°C–28°C
night: warmer than usual rain: typical rainfall wind: typical
27°Cnear normal
usually 27°C–28°C
night: warmer than usual rain: less rain than usual wind: typical
27°Cnear normal
usually 27°C–28°C
night: near normal rain: typical rainfall wind: typical
27°Ccooler than usual
usually 27°C–28°C
cooler than 73% of similar days
night: warmer than usual rain: typical rainfall wind: stronger than usual
27°Cnear normal
usually 27°C–28°C
night: near normal rain: less rain than usual wind: exceptionally strong

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
20°28°35° 1981: 27°C1982: 26°C1983: 27°C1984: 26°C1985: 27°C1986: 26°C1987: 28°C1988: 27°C1989: 27°C1990: 27°C1991: 27°C1992: 27°C1993: 27°C1994: 27°C1995: 26°C1996: 27°C1997: 27°C1998: 27°C1999: 27°C2000: 27°C2001: 27°C2002: 27°C2003: 27°C2004: 26°C2005: 27°C2006: 27°C2007: 28°C2008: 27°C2009: 27°C2010: 27°C2011: 27°C2012: 28°C2013: 27°C2014: 27°C2015: 27°C2016: 27°C2017: 27°C2018: 28°C2019: 28°C2020: 27°C2021: 27°C2022: 27°C2023: 28°C2024: 28°C2025: 27°C 2026 forecast: 27°C current forecast 27°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 27°C by day. The coolest year was 1986 (26°C) and the warmest was 2019 (28°C). The current forecast averages 27°C - close to the historical median.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - British Indian Ocean Territory

British Indian Ocean Territory - 14-day weather forecast infographic

Day-by-day forecast for British Indian Ocean Territory

Saturday5 September 2026
🌧️27°moderate rain
night 27° · evening 27° · rain 13.53 mm · humidity 76% · wind 8 m/s · clouds 91%
Sunday6 September 2026
🌧️27°moderate rain
night 27° · evening 27° · rain 8.5 mm · humidity 84% · wind 8 m/s · clouds 29%
Monday7 September 2026
☁️27°overcast clouds
night 27° · evening 27° · rain 1.99 mm · humidity 83% · wind 7 m/s · clouds 97%
Tuesday8 September 2026
☁️27°broken clouds
night 27° · evening 27° · rain 0.48 mm · humidity 78% · wind 8 m/s · clouds 83%
Wednesday9 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 1.62 mm · humidity 81% · wind 9 m/s · clouds 74%
Thursday10 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 2.43 mm · humidity 79% · wind 10 m/s · clouds 61%
Friday11 September 2026
☁️27°overcast clouds
night 27° · evening 27° · rain 0.45 mm · humidity 67% · wind 10 m/s · clouds 99%
Saturday12 September 2026
☁️27°overcast clouds
night 27° · evening 27° · rain 0.24 mm · humidity 63% · wind 9 m/s · clouds 99%
Sunday13 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 0.36 mm · humidity 77% · wind 8 m/s · clouds 99%
Monday14 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 0.12 mm · humidity 79% · wind 7 m/s · clouds 76%
Tuesday15 September 2026
🌧️26°light rain
night 26° · evening 26° · rain 1.02 mm · humidity 78% · wind 9 m/s · clouds 100%
Wednesday16 September 2026
🌧️26°light rain
night 27° · evening 26° · rain 1.2 mm · humidity 79% · wind 10 m/s · clouds 100%
Thursday17 September 2026
🌧️27°light rain
night 26° · evening 26° · rain 0.48 mm · humidity 78% · wind 10 m/s · clouds 83%
Friday18 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 0.42 mm · humidity 79% · wind 8 m/s · clouds 79%
Saturday19 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 0.36 mm · humidity 80% · wind 8 m/s · clouds 62%
Sunday20 September 2026
🌧️27°light rain
night 27° · evening 27° · rain 0.3 mm · humidity 79% · wind 7 m/s · clouds 12%

Sea temperature - British Indian Ocean Territory

Water today
28°C
Week avg
28°C
Waves today
0.7 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 28°C6.09 28°C7.09 28°C8.09 28°C9.09 28°C10.09 28°C11.09 29°C12.09 29°C13.09 29°C
Average sea temperature through the year:
Jan 29°CFeb 29°CMar 30°CApr 30°CMay 30°CJun 29°CJul 29°CAug 28°CSep 29°COct 29°CNov 29°CDec 29°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Weather in other countries in Africa

Burkina FasoBotswanaBurundiBeninCameroonAngola

FAQ - British Indian Ocean Territory weather

What is the weather like in British Indian Ocean Territory today?
Today it is about 27° during the day and 27° at night, moderate rain.
How far ahead can I check the forecast for British Indian Ocean Territory?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.