Colombo weather in July 2025

Expect daytime maximum temperatures of 30°C in Colombo, Sri Lanka in July and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 11 days with some rainfall and typically 124 mm of rainfall in the month.

  • 30°C maximum daytime temperature in July in Colombo30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in July in Colombo11
    11 days with some rainfall
  • 25°C minimum night-time temperature in July in Colombo25
    25°C min night temperature
  • 12 hours of daylight per day in July in Colombo12
    12 hours of daylight per day
  • High heat & humidity in July in ColomboH
    High heat & humidity
  • 124 mm monthly rainfall in July in Colombo124
    124 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Colombo11
    11+ (Extreme) UV index
  • 27°C sea temperature in July in Colombo27
    27°C sea temperature

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The July weather guide for Sri Lanka (Colombo) 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 Sri Lanka

How hot is it in Colombo in July?

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

How sunny is it in Colombo in July?

There are normally 6 hours of bright sunshine each day in Colombo in July - that's 50% of daylight hours.

How warm is the sea around Colombo in July?

The average sea temperature around Colombo in July is 27°C.

Does it rain in Colombo in July?

There are usually 11 days with some rain in Colombo in July and the average monthly rainfall is 124mm.

Colombo July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:59 18:30
Wednesday, 16th July 2025 06:02 18:31
Thursday, 31st July 2025 06:04 18:30

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