September in Negombo averages 28C by day and 25C at night, with 264 mm of rain over about 28 wet days. It is the 4th wettest month of the year.
What to Expect
| Detail | Info |
|---|---|
| Temperature | 28C by day, 25C at night |
| Rainfall | 264 mm, about 28 wet days |
Averages for 2015 to 2024 from the Open-Meteo weather archive.
Crowds low season.
Prices low.
Events and Festivals
- No major events
What to Do This Season
- Good negotiating position on hotel rates
- Fewer crowds at the fish market and beach bars
- Increasingly swimmable sea on calmer days
What to Watch Out For
- Inter-monsoon thunderstorms can be sudden and intense
- Lagoon water levels can rise after heavy rain
What to Wear
Breathable clothing with a reliable rain jacket; avoid flimsy umbrellas in windy storms.
Pack Sturdy rain jacket, Dry bag, Flexible itinerary (mentally, not literally packed).
Is It Worth Visiting Now?
Maybe
Best for budget travellers, those prioritising low prices over guaranteed sun.
More on Negombo
Flexible on dates? Compare Negombo in August and Negombo in October. The best time to visit Negombo sets all twelve months side by side. For what is open and worth it, see the things to do in Negombo. The main Negombo page covers costs and transport.
We plan trips to Negombo and the rest of Sri Lanka. Tell us your dates and we will put a route together. Our routes are on the tours page.