Negombo weather in July 2025

Expect daytime maximum temperatures of 31°C in Negombo, 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 10 days with some rainfall and typically 103 mm of rainfall in the month.

  • 31°C maximum daytime temperature in July in Negombo31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in July in Negombo10
    10 days with some rainfall
  • 25°C minimum night-time temperature in July in Negombo25
    25°C min night temperature
  • 12 hours of daylight per day in July in Negombo12
    12 hours of daylight per day
  • High heat & humidity in July in NegomboH
    High heat & humidity
  • 103 mm monthly rainfall in July in Negombo103
    103 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Negombo11
    11+ (Extreme) UV index
  • 27°C sea temperature in July in Negombo27
    27°C sea temperature

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The July weather guide for Sri Lanka (Negombo) 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 Negombo in July?

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

How sunny is it in Negombo in July?

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

How warm is the sea around Negombo in July?

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

Does it rain in Negombo in July?

There are usually 10 days with some rain in Negombo in July and the average monthly rainfall is 103mm.

Negombo July sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 05:59 18:31
Wednesday, 16th July 2025 06:02 18:32
Thursday, 31st July 2025 06:04 18:30

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