Gampaha
Sri Lanka
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Gampaha, Sri Lanka

The first month of the autumn, September, is still a hot month in Gampaha, Sri Lanka, with average temperature fluctuating between 30.6°C (87.1°F) and 24.4°C (75.9°F).

Temperature

In Gampaha, Sri Lanka, the average high-temperature is essentially the same as in August - a still tropical 30.6°C (87.1°F). In September, the average low-temperature is 24.4°C (75.9°F).

Rainfall

During September, Gampaha regularly aggregates up to 202mm (8") of precipitation. During the entire year, Gampaha aggregates up to 2398mm (94.4") of precipitation.

Daylight

In September, the average length of the day is 12.2h.

What is the temperature in September in Gampaha?

In Gampaha, Sri Lanka, in September, the average high-temperature is 30.6°C (87.1°F), and the average low-temperature is 24.4°C (75.9°F).

How much does it rain in Gampaha in September?

In Gampaha, in September, 202mm (8") of precipitation is typically accumulated.

How many hours of daylight does Gampaha have in September?

In September, the average length of the day is 12.2h.
Average temperature in September - Gampaha, Sri Lanka
  • Average high temperature in September: 30.6°C

The warmest month (with the highest average high temperature) is March (32.7°C).
The month with the lowest average high temperature is December (30.1°C).

  • Average low temperature in September: 24.4°C

The month with the highest average low temperature is May (25.1°C).
The coldest month (with the lowest average low temperature) is January (21.7°C).

Average rainfall in September - Gampaha, Sri Lanka
  • Average rainfall in September: 202mm

The wettest month (with the highest rainfall) is October (365mm).
The driest month (with the lowest rainfall) is January (62mm).

Average daylight in September - Gampaha, Sri Lanka
  • Average daylight in September: 12.2h

Months with the longest days are May, June and July (Average daylight: 12.5h).
The month with shortest days is December (Average daylight: 11.7h).