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Alpena weather in August 2025
Expect 25°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Alpena in August. Check more long-term weather averages for Alpena in August before you book your next holiday to Michigan in 2025/2026.
- 25°C max day temperature
25 - 8 hours of sunshine per day
- 11 days with some rainfall
11 - 12°C min night temperature
12 - 14 hours of daylight per day
14 - No heat & humidity
0 - 85 mm of monthly rainfall
85 - 7 (High) UV index
7 - 18°C sea temperature
18
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Recommended for Michigan
The August weather guide for Michigan (Alpena) 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 Alpena in August?
Daytime temperatures usually reach 25°C in Alpena in August with no heat and humidity, falling to 12°C at night.
How sunny is it in Alpena in August?
There are normally 8 hours of bright sunshine each day in Alpena in August - that's 59% of daylight hours.
How warm is the sea around Alpena in August?
The average sea temperature around Alpena in August is 18°C.
Does it rain in Alpena in August?
There are usually 11 days with some rain in Alpena in August and the average monthly rainfall is 85mm.
Alpena August sunrise & sunset times
Browse the sunrise and sunset times for Alpena in August 2025. Select a month to view Alpena sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 05:19 | 20:00 |
| Saturday, 16th August 2025 | 05:37 | 19:38 |
| Sunday, 31st August 2025 | 05:55 | 19:12 |
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