Alamosa weather in August 2025

Expect 26°C daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Alamosa in August. Check more long-term weather averages for Alamosa in August before you book your next holiday to Colorado in 2025/2026.

  • 26°C maximum daytime temperature in August in Alamosa26
    26°C max day temperature
  • 10 hours of sunshine per day
  • 10 days with some rainfall in August in Alamosa10
    10 days with some rainfall
  • 8°C minimum night-time temperature in August in Alamosa8
    8°C min night temperature
  • 14 hours of daylight per day in August in Alamosa14
    14 hours of daylight per day
  • No heat & humidity in August in Alamosa0
    No heat & humidity
  • 30 mm monthly rainfall in August in Alamosa30
    30 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Alamosa10
    10 (Very High) UV index

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The August weather guide for Colorado (Alamosa) 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)

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How hot is it in Alamosa in August?

Daytime temperatures usually reach 26°C in Alamosa in August with no heat and humidity, falling to 8°C at night.

How sunny is it in Alamosa in August?

There are normally 10 hours of bright sunshine each day in Alamosa in August - that's 73% of daylight hours.

Does it rain in Alamosa in August?

There are usually 10 days with some rain in Alamosa in August and the average monthly rainfall is 30mm.

Alamosa August sunrise & sunset times

Browse the sunrise and sunset times for Alamosa in August 2025. Select a month to view Alamosa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:08 19:11
Saturday, 16th August 2025 05:21 18:54
Sunday, 31st August 2025 05:33 18:33

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