Castries weather in July 2025

Expect 30°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Castries in July. Check more long-term weather averages for Castries in July before you book your next holiday to St Lucia in 2025/2026.

  • 30°C maximum daytime temperature in July in Castries30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 21 days with some rainfall in July in Castries21
    21 days with some rainfall
  • 25°C minimum night-time temperature in July in Castries25
    25°C min night temperature
  • 13 hours of daylight per day in July in Castries13
    13 hours of daylight per day
  • High heat & humidity in July in CastriesH
    High heat & humidity
  • 245 mm monthly rainfall in July in Castries245
    245 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Castries11
    11+ (Extreme) UV index
  • 28°C sea temperature in July in Castries28
    28°C sea temperature

More about Castries

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The July weather guide for St Lucia (Castries) 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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More about St Lucia

How hot is it in Castries in July?

Daytime temperatures usually reach 30°C in Castries in July with high heat and humidity, falling to 25°C at night.

How sunny is it in Castries in July?

There are normally 8 hours of bright sunshine each day in Castries in July - that's 61% of daylight hours.

How warm is the sea around Castries in July?

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

Does it rain in Castries in July?

There are usually 21 days with some rain in Castries in July and the average monthly rainfall is 245mm.

What is the chance of a hurricane in Castries in July?

On average less than 1 day in July in Castries is likely to be affected by the passage of one or more tropical storms.

Castries July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:40 18:36
Wednesday, 16th July 2025 05:44 18:36
Thursday, 31st July 2025 05:48 18:33

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