Weather in Mwanza - 14-day forecast

Detailed weather forecast for Mwanza, Tanzania: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.

Forecast for the next days in Mwanza

today☁️ 31°night 25°

Sun☁️ 31°night 25°

Mon🌤️ 31°💧 0.1 mm

Tue☀️ 31°💧 3.4 mm

Wed🌤️ 29°💧 0.1 mm

Thu☁️ 29°💧 0.8 mm

Fri🌤️ 29°💧 0.5 mm

Sat🌤️ 30°night 25°

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

Thursday 10 Sept in Mwanza, the forecast high is 29°C. Typical daytime temperatures at this time of year range from 29°C to 32°C, so it will be cooler than usual. It is cooler than 77% of similar days.

Saturday 5 Sept

31°Cwarmer than usual

usually 29°C–31°C

warmer than 73% of similar days

night: exceptionally warm rain: less rain than usual wind: lighter than usual

Sunday 6 Sept

31°Cnear normal

usually 29°C–31°C

night: exceptionally warm rain: less rain than usual wind: exceptionally light

Monday 7 Sept

31°Cnear normal

usually 29°C–32°C

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Tuesday 8 Sept

31°Cnear normal

usually 29°C–32°C

night: exceptionally warm rain: more rain than usual wind: typical

Wednesday 9 Sept

29°Ccooler than usual

usually 29°C–32°C

cooler than 72% of similar days

night: exceptionally warm rain: less rain than usual wind: lighter than usual

Thursday 10 Sept

29°Ccooler than usual

usually 29°C–32°C

cooler than 77% of similar days

night: exceptionally warm rain: typical rainfall wind: typical

Friday 11 Sept

29°Ccooler than usual

usually 29°C–32°C

cooler than 73% of similar days

night: exceptionally warm rain: typical rainfall wind: typical

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 →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 30°C by day. The coolest year was 2007 (27°C) and the warmest was 2024 (33°C). The current forecast averages 30°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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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 - Mwanza

Mwanza - 14-day weather forecast infographic

Mwanza 30 & 45-day weather - long-range outlook

Next 16 days · forecast

29°

around 25° at night · days with rain: 4

Weeks 3-4 · avg for September

29°

around 19° at night · rain chance 19%

Weeks 5-7 · avg for October

28°

around 19° at night · rain chance 33%

The 30 & 45-day outlook for Mwanza: the next 16 days are a numerical forecast updated daily - on average 29° by day and 25° at night. Further out we rely on multi-year climate averages: around 29° in September, and about 28° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Mwanza

Saturday5 September 2026

☁️31°overcast clouds

sunrise 06:45 · sunset 18:49 · night 25° · evening 29° · humidity 33% · wind 5 m/s · clouds 87%

Sunday6 September 2026

☁️31°broken clouds

sunrise 06:45 · sunset 18:49 · night 25° · evening 29° · humidity 31% · wind 5 m/s · clouds 66%

Monday7 September 2026

🌤️31°a few clouds

sunrise 06:44 · sunset 18:49 · night 27° · evening 31° · rain 0.14 mm · humidity 27% · wind 5 m/s · clouds 15%

Tuesday8 September 2026

☀️31°clear sky

sunrise 06:44 · sunset 18:48 · night 27° · evening 31° · rain 3.43 mm · humidity 22% · wind 7 m/s · clouds 10%

Wednesday9 September 2026

🌤️29°scattered clouds

sunrise 06:44 · sunset 18:48 · night 26° · evening 29° · rain 0.1 mm · humidity 31% · wind 6 m/s · clouds 37%

Thursday10 September 2026

☁️29°overcast clouds

sunrise 06:43 · sunset 18:48 · night 27° · evening 28° · rain 0.82 mm · humidity 36% · wind 6 m/s · clouds 100%

Friday11 September 2026

🌤️29°a few clouds

sunrise 06:43 · sunset 18:48 · night 25° · evening 28° · rain 0.51 mm · humidity 35% · wind 7 m/s · clouds 19%

Saturday12 September 2026

🌤️30°a few clouds

sunrise 06:42 · sunset 18:47 · night 25° · evening 29° · humidity 35% · wind 5 m/s · clouds 13%

Sunday13 September 2026

🌤️30°scattered clouds

sunrise 06:42 · sunset 18:47 · night 25° · evening 28° · rain 0.87 mm · humidity 34% · wind 6 m/s · clouds 32%

Monday14 September 2026

☁️30°broken clouds

sunrise 06:41 · sunset 18:47 · night 25° · evening 28° · rain 0.27 mm · humidity 34% · wind 5 m/s · clouds 82%

Tuesday15 September 2026

🌤️30°a few clouds

sunrise 06:41 · sunset 18:46 · night 26° · evening 28° · rain 0.19 mm · humidity 32% · wind 4 m/s · clouds 13%

Wednesday16 September 2026

☀️29°clear sky

sunrise 06:41 · sunset 18:46 · night 24° · evening 27° · humidity 35% · wind 5 m/s · clouds 8%

Thursday17 September 2026

🌧️29°light rain

sunrise 06:40 · sunset 18:46 · night 24° · evening 26° · rain 0.66 mm · humidity 36% · wind 5 m/s · clouds 50%

Friday18 September 2026

🌧️28°light rain

sunrise 06:40 · sunset 18:46 · night 24° · evening 26° · rain 1.33 mm · humidity 43% · wind 6 m/s · clouds 91%

Saturday19 September 2026

🌧️27°light rain

sunrise 06:39 · sunset 18:45 · night 25° · evening 26° · rain 3.05 mm · humidity 54% · wind 5 m/s · clouds 96%

Sunday20 September 2026

🌧️24°light rain

sunrise 06:39 · sunset 18:45 · night 23° · evening 25° · rain 2.96 mm · humidity 61% · wind 5 m/s · clouds 100%

UV index in Mwanza - is it safe to sunbathe?

Today the UV index in Mwanza 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.

Air quality and smog in Mwanza

Air quality in Mwanza is currently very good. Fine particulate PM2.5: 10.2 µg/m³, PM10: 11 µg/m³.

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Mwanza	10.2	11	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 04:00).

Mwanza weather through the year

Nearby and related places

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FAQ - Mwanza weather

What is the weather like in Mwanza today?

Today it is about 31° during the day and 25° at night, overcast clouds.

How far ahead can I check the forecast for Mwanza?

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.