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September Weather in Gampola, Sri Lanka

Last updated: August 31, 2025

In September, the average temperature in Gampola, Sri Lanka hovers around 24°C (75°F), making it a pleasant destination. However, you can expect temperatures to range from a cool 19°C (67°F) to a warm 30°C (85°F). During this month, 178 mm (7.0 in) of precipitation typically falls over 23 days, contributing to an average humidity of 81%. Be prepared for a mix of cozy warmth and occasional showers!

September Temperature in Gampola

In September in Gampola, the average temperature is 24°C (75°F), with maximums reaching up to 30°C (85°F) and minimums dropping to as low as 19°C (67°F). This mild and pleasant climate makes Gampola an ideal destination for travelers looking to enjoy outdoor activities and sightseeing.

September Weather in Gampola: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Gampola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gampola, September typically has an average temperature of 24°C (75°F), with highs reaching up to 30°C (85°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec747677777776767575747474
Data source: Temperature data for Gampola generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Gampola

In Gampola in September, the precipitation amount is 178 mm (7.0 in) spread over 23 days.

September Precipitation Trends in Gampola

The chart displays monthly precipitation patterns in Gampola, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Gampola, September typically receives around 178 mm (7.0 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec10374115205244105131147178390481153
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gampola

In Gampola in September humidity is 81%. With an average temperature of 24°C (75°F), this humidity feels like a warm, thick blanket enveloping you, making traveling a bit sticky and sweaty, yet still inviting for those who enjoy the rich, tropical atmosphere.

September Average Humidity in Gampola

This chart illustrates the average monthly humidity levels in Gampola, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Gampola is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%69%69%79%85%81%85%81%89%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Gampola

In Gampola in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Gampola, you can check here.

Maximum UV Index Levels in Gampola for September

The chart shows the monthly maximum UV Index (UVI) for Gampola in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Gampola typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131415151413131414131111
Data source: Gampola September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Gampola Compares to Other Months

Weather in Gampola varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Gampola, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Gampola, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)103 mm (4.1 inches)80%extreme
February Weather24°C (76°F)74 mm (2.9 inches)72%extreme
March Weather25°C (78°F)115 mm (4.5 inches)69%extreme
April Weather25°C (78°F)205 mm (8.1 inches)69%extreme
May Weather25°C (77°F)244 mm (9.6 inches)79%extreme
June Weather25°C (77°F)105 mm (4.1 inches)85%extreme
July Weather24°C (76°F)131 mm (5.2 inches)81%extreme
August Weather24°C (75°F)147 mm (5.8 inches)85%extreme
September Weather24°C (75°F)178 mm (7.0 inches)81%extreme
October Weather24°C (75°F)390 mm (15.4 inches)89%extreme
November Weather24°C (75°F)481 mm (18.9 inches)88%extreme
December Weather23°C (74°F)153 mm (6.0 inches)86%extreme

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