Negombo weather in July
Temperature, sea and sunshine in July: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in July
Good
Best time to visit: January – March
What is the weather like in Negombo in July?
In July, Negombo is hot: daytime highs average 29 °C, and even at night it stays warm at around 25 °C. The sea averages 27.8 °C – lovely and warm for swimming. Expect around 6 hours of sunshine a day. It is the rainy season: rain falls on about 28 days, totalling 218 mm. The air is often humid and muggy. All in all, July is a good month for a holiday in Negombo.
July compared
How the weather changes from June to August. Tap a month to open it.
More details for July
- Daylight
- 12 h 30 min06:01 – 18:32
- UV index
- 13 · extremeclear sky, noon (estimate)
- Muggy days
- 31 daysdew point 18 °C or more
- Wind
- 18 km/haverage daily peak
- Cloud cover
- 86 %on average
- Hot days
- 1 day30 °C or more
- Time zone
- UTC+5:30Asia/Colombo
How the score comes together
- Temperatureweight 35 %100 %
- Seaweight 25 %100 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 20 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in July
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Insect repellent
- Rain jacket or umbrella
Negombo in July: quick answers
Is Negombo hot in July?
Yes. In July, Negombo is hot: daytime highs average 29 °C and nights stay around 25 °C.
Can you swim in Negombo in July?
Yes. In July the sea averages 27.8 °C – lovely and warm for swimming.
Does it rain much in Negombo in July?
It rains often – on about 28 days, adding up to 218 mm.
Negombo month by month
The whole year in NegomboAll destinations: Sri Lanka
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)