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Montevideo weather in September 2025
Expect 18°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Montevideo in September. Check more long-term weather averages for Montevideo in September before you book your next holiday to Uruguay in 2025/2026.
- 1818°C max day temperature
- 7 hours of sunshine per day
- 99 days with some rainfall
- 99°C min night temperature
- 1212 hours of daylight per day
- 0No heat & humidity
- 7575 mm of monthly rainfall
- 66 (High) UV index
- 1313°C sea temperature
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The September weather guide for Uruguay (Montevideo) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
How hot is it in Montevideo in September?
Daytime temperatures usually reach 18°C in Montevideo in September, falling to 9°C at night.
How sunny is it in Montevideo in September?
There are normally 7 hours of bright sunshine each day in Montevideo in September - that's 55% of daylight hours.
How warm is the sea around Montevideo in September?
The average sea temperature around Montevideo in September is 13°C.
Does it rain in Montevideo in September?
There are usually 9 days with some rain in Montevideo in September and the average monthly rainfall is 75mm.
Montevideo September sunrise & sunset times
Browse the sunrise and sunset times for Montevideo in September 2025. Select a month to view Montevideo sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 07:03 | 18:26 |
Monday, 15th September 2025 | 06:44 | 18:36 |
Tuesday, 30th September 2025 | 06:22 | 18:47 |
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