Monaco weather in August 2025

Expect 25°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Monaco in August. Check more long-term weather averages for Monaco in August before you book your next holiday to Monaco in 2025/2026.

  • 25°C maximum daytime temperature in August in Monaco (Monte-Carlo)25
    25°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in August in Monaco (Monte-Carlo)7
    7 days with some rainfall
  • 17°C minimum night-time temperature in August in Monaco (Monte-Carlo)17
    17°C min night temperature
  • 14 hours of daylight per day in August in Monaco (Monte-Carlo)14
    14 hours of daylight per day
  • Low heat & humidity in August in Monaco (Monte-Carlo)L
    Low heat & humidity
  • 46 mm monthly rainfall in August in Monaco (Monte-Carlo)46
    46 mm of monthly rainfall
  • UV (maximum) index 7 (High) in August in Monaco (Monte-Carlo)7
    7 (High) UV index
  • 24°C sea temperature in August in Monaco (Monte-Carlo)24
    24°C sea temperature

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The August weather guide for Monaco, represented by Monte-Carlo, (Monte-Carlo) 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 Monaco in August?

Daytime temperatures usually reach 25°C in Monte-Carlo, Monaco in August with low heat and humidity, falling to 17°C at night.

How sunny is it in Monaco in August?

There are normally 9 hours of bright sunshine each day in Monte-Carlo, Monaco in August - that's 65% of daylight hours.

How warm is the sea around Monaco in August?

The average sea temperature around Monte-Carlo, Monaco in August is 24°C.

Does it rain in Monaco in August?

There are usually 7 days with some rain in Monte-Carlo, Monaco in August and the average monthly rainfall is 46mm.

Monaco August sunrise & sunset times

Browse the sunrise and sunset times for Monaco in August 2025. Select a month to view Monaco sunrise and sunset times for the next 12 months. The Monaco sunrise and sunset times shown below are for Monte-Carlo.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:19 19:53
Saturday, 16th August 2025 05:36 19:32
Sunday, 31st August 2025 05:53 19:07

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