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St Louis weather in May 2025
Expect 25°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in St Louis in May. Check more long-term weather averages for St Louis in May before you book your next holiday to Missouri in 2025/2026.
- 25°C max day temperature
25
- 9 hours of sunshine per day
- 10 days with some rainfall
10
- 13°C min night temperature
13
- 14 hours of daylight per day
14
- No heat & humidity
0
- 103 mm of monthly rainfall
103
- 8 (Very High) UV index
8
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Recommended for Missouri
The May weather guide for Missouri (St Louis) 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)
More about the USA
How hot is it in St Louis in May?
Daytime temperatures usually reach 25°C in St Louis in May with no heat and humidity, falling to 13°C at night.
How sunny is it in St Louis in May?
There are normally 9 hours of bright sunshine each day in St Louis in May - that's 61% of daylight hours.
Does it rain in St Louis in May?
There are usually 10 days with some rain in St Louis in May and the average monthly rainfall is 103mm.
St Louis May sunrise & sunset times
Browse the sunrise and sunset times for St Louis in May 2025. Select a month to view St Louis sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Thursday, 1st May 2025 | 05:03 | 18:53 |
Friday, 16th May 2025 | 04:48 | 19:07 |
Saturday, 31st May 2025 | 04:38 | 19:19 |
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