Gampaha District (Negombo)
September
Weather in Gampaha District for September 2027
Your guide to Gampaha District weather in September - trends and predictions
Gampaha District experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 283.3 mm.
Is September a good time to visit Gampaha District? check out the best time to travel to Gampaha District page.
Rain 🌧️
More
3
Dry days
27
Rainy days
0
Snow days
29°/24°
Temperatures
18 km/h
Avg max wind
83 %
Avg humidity
Gampaha District Weather September
Move between months or click on a day
Temperatures trend during September in Gampaha District
See the weather trend as well as the moving average line
September weather in Gampaha District day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Light rain | 29° /25° | 2.6 mm | 5 | |
| 2 Sept. |  Patchy rain possible | 30° /24° | 1.5 mm | 6 | |
| 3 Sept. | Light rain | 30° /25° | 3.5 mm | 6 | |
| 4 Sept. | Light rain | 30° /24° | 3.1 mm | 6 | |
| 5 Sept. | Light rain | 30° /24° | 3.7 mm | 5 | |
| 6 Sept. | Patchy rain possible | 30° /24° | 1.4 mm | 4 | |
| 7 Sept. | Light rain | 30° /24° | 3 mm | 5 | |
| 8 Sept. | Light drizzle | 29° /25° | 1.6 mm | 6 | |
| 9 Sept. | Light rain | 30° /24° | 3.7 mm | 7 | |
| 10 Sept. | Light rain | 29° /25° | 4.6 mm | 4 | |
| 11 Sept. | Light rain | 30° /25° | 3.8 mm | 5 | |
| 12 Sept. | Light rain | 31° /25° | 7.4 mm | 5 | |
| 13 Sept. |  Moderate rain | 29° /25° | 11.4 mm | 4 | |
| 14 Sept. | Moderate rain | 30° /24° | 14.2 mm | 4 | |
| 15 Sept. | Moderate rain | 29° /25° | 14.4 mm | 4 | |
| 16 Sept. | Moderate rain | 29° /24° | 17.3 mm | 4 | |
| 17 Sept. | Moderate rain | 30° /24° | 16.8 mm | 6 | |
| 18 Sept. | Moderate rain | 29° /25° | 14.3 mm | 5 | |
| 19 Sept. | Moderate rain | 29° /25° | 17.6 mm | 5 | |
| 20 Sept. |  Heavy rain | 29° /24° | 29.3 mm | 4 | |
| 21 Sept. | Moderate rain | 29° /25° | 12 mm | 5 | |
| 22 Sept. | Moderate rain | 29° /24° | 11.2 mm | 5 | |
| 23 Sept. | Moderate rain | 29° /25° | 14 mm | 4 | |
| 24 Sept. | Moderate rain | 28° /25° | 24.4 mm | 5 | |
| 25 Sept. | Moderate rain | 28° /25° | 14.8 mm | 4 | |
| 26 Sept. | Moderate rain | 28° /24° | 15.4 mm | 4 | |
| 27 Sept. |  Patchy light rain with thunder | 29° /25° | 5.3 mm | 5 | |
| 28 Sept. |  Thundery outbreaks possible | 29° /25° | 6 mm | 5 | |
| 29 Sept. | Light rain shower | 29° /25° | 2.1 mm | 5 | |
| 30 Sept. | Light rain | 30° /25° | 3.1 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Gampaha District in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Gampaha District forecast closer to your planned date for the most up-to-date weather information.
Change Month
Gampaha District in September - FAQ
What are the expected maximum and minimum temperatures in Gampaha District during September?
During September, expect a variety of temperatures with highs around 29° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Gampaha District during September?
Significant rainfall exceeding 283.3 mm is expected in Gampaha District during September, occurring over more than 27 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Gampaha District during September?
The average wind speed in Gampaha District during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Gampaha District
Explore the daily rainfall trends and prepare for Gampaha Districts September weather 💧
Typically, Gampaha District has 27 rainy days in September with a total of 283.3 mm of rainfall.
UV exposure in Gampaha District during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Gampaha District
Select a location for an accurate weather forecast
More Locations Quick links
More Gampaha District weather pages
You are here
Found a mistake?
We appreciate your attention to details. Tell us here.