St Martin weather in July 2025

Expect 31°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in St Martin in July. Check more long-term weather averages for St Martin in July before you book your next holiday to St Martin in 2025/2026.

  • 31°C maximum daytime temperature in July in St Martin31
    31°C max day temperature
  • 8 hours of sunshine per day
  • 17 days with some rainfall in July in St Martin17
    17 days with some rainfall
  • 25°C minimum night-time temperature in July in St Martin25
    25°C min night temperature
  • 13 hours of daylight per day in July in St Martin13
    13 hours of daylight per day
  • Very high heat & humidity in July in St MartinVH
    Very High heat & humidity
  • 76 mm monthly rainfall in July in St Martin76
    76 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in St Martin11
    11+ (Extreme) UV index
  • 28°C sea temperature in July in St Martin28
    28°C sea temperature

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The July weather guide for St Martin 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 St Martin in July?

Daytime temperatures usually reach 31°C in St Martin in July with very high heat and humidity, falling to 25°C at night.

How sunny is it in St Martin in July?

There are normally 8 hours of bright sunshine each day in St Martin in July - that's 64% of daylight hours.

How warm is the sea around St Martin in July?

The average sea temperature around St Martin in July is 28°C.

Does it rain in St Martin in July?

There are usually 17 days with some rain in St Martin in July and the average monthly rainfall is 76mm.

St Martin July sunrise & sunset times

Browse the sunrise and sunset times for St Martin in July 2025. Select a month to view St Martin sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:41 18:52
Wednesday, 16th July 2025 05:45 18:51
Thursday, 31st July 2025 05:51 18:47

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