Normally, the average daily temperature in Negombo during the month of September is 26 with usual highs being around 30 with low average temperatures being 25. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 26 |
| High Temperature | 30 |
| Low Temperature | 25 |
Useful Links: Negombo Weather: Average Weather & Yearly Climate