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Rajagiriya Climate by Month

Rajagiriya maintains a fairly consistent very warm average temperature. It also has a relatively rainy climate with high levels of precipitation. Let’s explore the climate details in depth to provide you with a complete overview.

Average day and night temperature

In Rajagiriya temperatures are generally consistent throughout the year. On average, daytime temperatures range from a very warm 33°C in March to a very warm 30°C in January. Nighttime temperatures can drop, with averages reaching 24°C in January.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Rajagiriya experiences significant rainfall throughout the year, averaging 2633 mm of precipitation annually. The seasons in Rajagiriya, bring significant changes in precipitation. The wettest month, October, receives heavy rainfall, with an average of 358 mm of precipitation. This rainfall is distributed across 16 rainy days.

In contrast, the driest month, January, experiences much less rainfall, totaling 72 mm over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Rajagiriya enjoys sunny spells year-round. March sees up to 9.2 hours of daily sunshine, perfect for a sunny trip. September, the least sunny month, still offers a generous 6.3 hours of sun despite this cloudier time of the year.

Monthly hours of sunshine

Data from: Colombo, Sri Lanka (3 KM, 2 Miles).

Daily hours of sunshine

Data from: Colombo, Sri Lanka (3 KM, 2 Miles).

Average water temperature

The mean water temperature over the year in Rajagiriya ranges from 26°C in August to 28°C in January.

Water temperature over the year

Data from: Colombo, Sri Lanka (3 KM, 2 Miles).

The best time of year to visit Rajagiriya in Sri Lanka

Rajagiriya has high temperatures year round ranging between 30°C and 33°C.
Other facts from our historical weather data:
  • Which is the hottest month in Rajagiriya?
    March has an average maximum temperature of 33°C and is the hottest month of the year.
  • Which is the coolest month in Rajagiriya?
    The coolest month is January with an average maximum temperature of 30°C.
  • Which is the wettest month in Rajagiriya?
    October tops the wettest month list with 358 mm of rainfall.
  • Which is the driest month in Rajagiriya?
    January is the driest month with 72 mm of precipitation.
  • Which is the sunniest month in Rajagiriya?
    March is the sunniest month with an average of 276 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Rajagiriya

    Sun   Dec 15
    31°C | 24°C
    N 18 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Dec 16
    29°C | 24°C
    N 14 km/h
    15 mm
    overcast and thunder

    overcast and thunder

    Tue   Dec 17
    29°C | 23°C
    NW 14 km/h
    broken clouds and no rain

    broken clouds and no rain