Jacksonville weather in August 2025

Expect 91°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Jacksonville in August. Check more long-term weather averages for Jacksonville in August before you book your next holiday to Florida in 2025/2026.

  • 91°F maximum daytime temperature in August in Jacksonville91
    91°F max day temperature
  • 8 hours of sunshine per day
  • 15 days with some rainfall in August in Jacksonville15
    15 days with some rainfall
  • 72°F minimum night-time temperature in August in Jacksonville72
    72°F min night temperature
  • 13 hours of daylight per day in August in Jacksonville13
    13 hours of daylight per day
  • Very high heat & humidity in August in JacksonvilleVH
    Very High heat & humidity
  • 7.3 inches monthly rainfall in August in Jacksonville7.3
    7.3 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in August in Jacksonville10
    10 (Very High) UV index

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The August weather guide for Florida (Jacksonville) 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)  |  Imperial (°F)

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How hot is it in Jacksonville in August?

Daytime temperatures usually reach 91°F in Jacksonville in August with very high heat and humidity, falling to 72°F at night.

How sunny is it in Jacksonville in August?

There are normally 8 hours of bright sunshine each day in Jacksonville in August - that's 64% of daylight hours.

Does it rain in Jacksonville in August?

There are usually 15 days with some rain in Jacksonville in August and the average monthly rainfall is 7.3 inches.

What is the chance of a hurricane in Jacksonville in August?

On average 1.1 days in August in Jacksonville are likely to be affected by the passage of one or more tropical storms.

Jacksonville August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:45 19:20
Saturday, 16th August 2025 05:54 19:07
Sunday, 31st August 2025 06:03 18:50

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