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Weather in Sumbawa - 14-day forecast

Detailed weather forecast for Sumbawa, Indonesia: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Sumbawa
today🌤️ 33°💧 0.3 mm
Sun🌧️ 34°💧 0.1 mm
Mon🌤️ 35°night 21°
Tue☁️ 34°💧 0.2 mm
Wed🌧️ 35°💧 0.2 mm
Thu🌧️ 35°💧 0.3 mm
Fri🌧️ 35°💧 1.9 mm
Sat🌧️ 35°💧 1.1 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

Wednesday 9 Sept in Sumbawa, the forecast high is 35°C. Typical daytime temperatures at this time of year range from 31°C to 33°C, so it will be exceptionally warm. It is warmer than 100% of similar days.

33°Cexceptionally warm
usually 31°C–33°C
warmer than 91% of similar days
night: cooler than usual rain: more rain than usual wind: exceptionally strong
34°Cexceptionally warm
usually 31°C–33°C
warmer than 98% of similar days
night: cooler than usual rain: more rain than usual wind: exceptionally strong
35°Cexceptionally warm
usually 31°C–33°C
warmer than 99% of similar days
night: cooler than usual rain: less rain than usual wind: exceptionally strong
34°Cexceptionally warm
usually 31°C–33°C
warmer than 99% of similar days
night: cooler than usual rain: more rain than usual wind: exceptionally strong
35°Cexceptionally warm
usually 31°C–33°C
warmer than 100% of similar days
night: exceptionally warm rain: more rain than usual wind: exceptionally strong
35°Cexceptionally warm
usually 31°C–33°C
warmer than 99% of similar days
night: cooler than usual rain: more rain than usual wind: exceptionally strong
35°Cexceptionally warm
usually 31°C–33°C
warmer than 99% of similar days
night: near normal rain: exceptionally wet 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 →
25°33°40° 1981: 31°C1982: 31°C1983: 32°C1984: 32°C1985: 32°C1986: 32°C1987: 31°C1988: 32°C1989: 32°C1990: 32°C1991: 31°C1992: 32°C1993: 32°C1994: 31°C1995: 32°C1996: 32°C1997: 32°C1998: 33°C1999: 31°C2000: 32°C2001: 33°C2002: 31°C2003: 31°C2004: 32°C2005: 33°C2006: 32°C2007: 32°C2008: 32°C2009: 33°C2010: 30°C2011: 31°C2012: 32°C2013: 31°C2014: 32°C2015: 32°C2016: 33°C2017: 32°C2018: 32°C2019: 32°C2020: 33°C2021: 32°C2022: 32°C2023: 32°C2024: 33°C2025: 30°C 2026 forecast: 34°C current forecast 34°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 32°C by day. The coolest year was 2010 (30°C) and the warmest was 2024 (33°C). The current forecast averages 34°C - higher than in 100% of historical years.

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 - Sumbawa

Sumbawa - 14-day weather forecast infographic

Day-by-day forecast for Sumbawa

Saturday5 September 2026
🌤️33°a few clouds
sunrise 06:10 · sunset 18:08 · night 22° · evening 27° · rain 0.3 mm · humidity 38% · wind 5 m/s · clouds 23%
Sunday6 September 2026
🌧️34°light rain
sunrise 06:10 · sunset 18:08 · night 21° · evening 26° · rain 0.12 mm · humidity 37% · wind 5 m/s · clouds 62%
Monday7 September 2026
🌤️35°a few clouds
sunrise 06:09 · sunset 18:08 · night 21° · evening 28° · humidity 34% · wind 5 m/s · clouds 20%
Tuesday8 September 2026
☁️34°broken clouds
sunrise 06:08 · sunset 18:08 · night 22° · evening 28° · rain 0.22 mm · humidity 37% · wind 4 m/s · clouds 57%
Wednesday9 September 2026
🌧️35°light rain
sunrise 06:08 · sunset 18:08 · night 24° · evening 29° · rain 0.17 mm · humidity 38% · wind 4 m/s · clouds 5%
Thursday10 September 2026
🌧️35°light rain
sunrise 06:07 · sunset 18:08 · night 22° · evening 29° · rain 0.33 mm · humidity 36% · wind 4 m/s · clouds 51%
Friday11 September 2026
🌧️35°light rain
sunrise 06:07 · sunset 18:08 · night 23° · evening 29° · rain 1.89 mm · humidity 37% · wind 5 m/s · clouds 100%
Saturday12 September 2026
🌧️35°light rain
sunrise 06:06 · sunset 18:08 · night 23° · evening 29° · rain 1.11 mm · humidity 35% · wind 3 m/s · clouds 71%
Sunday13 September 2026
🌧️35°light rain
sunrise 06:06 · sunset 18:07 · night 22° · evening 30° · rain 0.39 mm · humidity 34% · wind 4 m/s · clouds 97%
Monday14 September 2026
☀️35°clear sky
sunrise 06:05 · sunset 18:07 · night 22° · evening 30° · rain 0.24 mm · humidity 32% · wind 5 m/s · clouds 95%
Tuesday15 September 2026
🌤️36°a few clouds
sunrise 06:04 · sunset 18:07 · night 22° · evening 30° · rain 0.12 mm · humidity 28% · wind 6 m/s · clouds 20%
Wednesday16 September 2026
🌤️36°a few clouds
sunrise 06:04 · sunset 18:07 · night 22° · evening 31° · humidity 27% · wind 4 m/s · clouds 12%
Thursday17 September 2026
🌤️35°a few clouds
sunrise 06:03 · sunset 18:07 · night 22° · evening 30° · rain 0.81 mm · humidity 29% · wind 4 m/s · clouds 16%
Friday18 September 2026
🌤️35°a few clouds
sunrise 06:03 · sunset 18:07 · night 23° · evening 30° · rain 0.27 mm · humidity 33% · wind 4 m/s · clouds 15%
Saturday19 September 2026
🌧️35°light rain
sunrise 06:02 · sunset 18:07 · night 22° · evening 29° · rain 2.67 mm · humidity 38% · wind 4 m/s · clouds 79%
Sunday20 September 2026
🌤️36°scattered clouds
sunrise 06:01 · sunset 18:07 · night 22° · evening 30° · humidity 25% · wind 4 m/s · clouds 31%

UV index in Sumbawa - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTSumbawa03681111+8.9UV VERY HIGHtoday, daily maxSPF 50, long sleeves and shade between 10:00 and16:00.Unprotected fair skin may burn in about 20 min9Sat5.099Sun6.099Mon7.099Tue8.099Wed9.0910Thu10.099Fri11.099Sat12.099Sun13.099Mon14.099Tue15.099Wed16.099Thu17.099Fri18.099Sat19.099Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Sumbawa is 9 (very high) - unprotected fair skin can burn in about 20 minutes. SPF 50, long sleeves and shade between 10:00 and 16:00.

Sea temperature - Sumbawa

Water today
28°C
Week avg
28°C
Waves today
0.2 m
How's the water?
very warm
16-day sea temperature forecast:
5.09 28°C6.09 28°C7.09 28°C8.09 29°C9.09 28°C10.09 29°C11.09 28°C12.09 29°C13.09 29°C
Average sea temperature through the year:
Jan 30°CFeb 30°CMar 30°CApr 30°CMay 30°CJun 29°CJul 29°CAug 29°CSep 29°COct 30°CNov 31°CDec 31°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Upcoming public holidays in Indonesia: Christmas Day — 25 December · New Year's Day — 1 January · Good Friday — 26 March.

Nearby and related places

TimorSumbaAlorSumatraBaliLombok

FAQ - Sumbawa weather

What is the weather like in Sumbawa today?
Today it is about 33° during the day and 22° at night, a few clouds.
How far ahead can I check the forecast for Sumbawa?
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.