Polonnaruwa weather in September 2025

Expect 90°F daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Polonnaruwa in September. Check more long-term weather averages for Polonnaruwa in September before you book your next holiday to Sri Lanka in 2025/2026.

  • 90°F maximum daytime temperature in September in Polonnaruwa90
    90°F max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in September in Polonnaruwa8
    8 days with some rainfall
  • 75°F minimum night-time temperature in September in Polonnaruwa75
    75°F min night temperature
  • 12 hours of daylight per day in September in Polonnaruwa12
    12 hours of daylight per day
  • Very high heat & humidity in September in PolonnaruwaVH
    Very High heat & humidity
  • 3.7 inches monthly rainfall in September in Polonnaruwa3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Polonnaruwa11
    11+ (Extreme) UV index

More about Polonnaruwa

Polonnaruwa by month

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The September weather guide for Sri Lanka (Polonnaruwa) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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More about Sri Lanka

How hot is it in Polonnaruwa in September?

Daytime temperatures usually reach 90°F in Polonnaruwa in September with very high heat and humidity, falling to 75°F at night.

How sunny is it in Polonnaruwa in September?

There are normally 6 hours of bright sunshine each day in Polonnaruwa in September - that's 53% of daylight hours.

Does it rain in Polonnaruwa in September?

There are usually 8 days with some rain in Polonnaruwa in September and the average monthly rainfall is 3.7 inches.

Polonnaruwa September sunrise & sunset times

Browse the sunrise and sunset times for Polonnaruwa in September 2025. Select a month to view Polonnaruwa sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:58 18:14
Monday, 15th September 2025 05:56 18:06
Tuesday, 30th September 2025 05:54 17:58

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