Best time to go

Polonnaruwa in September 2026: weather, temperatures and activities

Do you want to visit Polonnaruwa in September 2026? Discover the usual weather at this time of year, average temperatures, the risk of rain, possible activities, and our opinion on whether September is a good month to travel to Polonnaruwa, Sri Lanka.

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Is it worth visiting Polonnaruwa in September?

Check your ideal travel criteria and see if the month of September suits your plans to go to Polonnaruwa.
What matters most?
Polonnaruwa in September 2026: weather, temperatures and activities

Page summary

Polonnaruwa in September in summary
Favourable weather
Min 28°C Max 33°C 122 mm 6 day(s) 67% 30% UV 7 12.1 h/day
Best activities in September
Gastronomy
Practical guidelines
Moderate crowds 05:56 18:06
Hourly weather

Average weather in Polonnaruwa in September 2026

Favourable weather

The weather in Polonnaruwa in September 2026 is based on statistical data from previous years in September. This allows you to forecast the weather in September 2026. Check the hourly statistics (6:00, 9:00, 12:00, 15:00, 18:00, 21:00, 0:00 and 3:00), with the associated average temperature, for the whole month, and also, by navigating the tabs, for the beginning, middle and end of the month.

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Climate

Climate of Polonnaruwa in September

Temperatures, precipitation and monthly trends help to better understand the climate in Polonnaruwa in September.

Temperatures and rain in Polonnaruwa in September

Average daily weather

Temperatures and rain day by day in September.
Minimal Average Maximums Average rainfall

Monthly temperatures

The month of September is highlighted to compare it quickly with the rest of the year.
Minimal Average Maximums

Monthly precipitation

The bar for the month under study is highlighted.
Average rainfall

About the climate in Polonnaruwa in September

Seasonal normals

Seasonal normals of Polonnaruwa in September

Check the seasonal normals in Polonnaruwa in September and compare the weather with the previous month and the following month (or the months of your choice by selecting months in the form below): temperatures, wind, rain, humidity, climate rating...

Last updated: 12/01/2026
Reference period for normals: January 2009 - December 2025
Month analyzed
September
Weather data August September October
Outside temperature
Average temperature 30.6°C 30.6°C 29.6°C
Maximum temperature 33.3°C 33.5°C 32.5°C
Minimum temperature 27.8°C 27.8°C 26.8°C
Record maximum temperature 39.0°C
(2013)
39.0°C
(2012)
38.0°C
(2012)
Record low temperature 23.0°C
(2009)
24.0°C
(2020)
22.0°C
(2019)
Number of days at +30° 30 day(s)
(97%)
29 day(s)
(97%)
28 day(s)
(90%)
Number of days at +18° 31 day(s)
(100%)
30 day(s)
(100%)
31 day(s)
(100%)
Number of days below 0° 0 day(s)
(0%)
0 day(s)
(0%)
0 day(s)
(0%)
Wind
Wind speed 27 km/h 25 km/h 17 km/h
Wind temperature 27.8°C 27.8°C 26.8°C
Precipitation (rain)
Precipitation 84.8 mm 122.1 mm 304.1 mm
Number of days with precipitation 12 day(s)
(39%)
14 day(s)
(47%)
22 day(s)
(71%)
Number of days with significant precipitation (greater than 5 mm) 5 day(s)
(16%)
6 day(s)
(21%)
15 day(s)
(50%)
Record precipitation in one day 45.6 mm
(2021)
50.6 mm
(2014)
55.5 mm
(2014)
Other weather data
Humidity 67% 67% 76%
Visibility 9.7 km 9.6 km 8.9 km
Cloud cover 29% 30% 34%
UV index 7 7 7
Daily sunshine 12h 12h 11h
Sunrise and sunset
Sunrise time 05h59 05h56 05h53
Sunset time 18h22 18h06 17h50
Day length 12h23 12h10 11h57
Our opinion on the climate in September
The review of Where And When favourable weather favourable weather fair weather
Activities and events

What to do in Polonnaruwa in September?

Best activities in September
Gastronomy
Possible activities in September
Cultural visits and heritageNature and landscapes
Observed weather

What was the weather like in Polonnaruwa in September last?

Find the observed weather calendar in Polonnaruwa in September 2025, with each day’s weather, temperatures and precipitation.

Mon. Tue. Wed. Thu. Fri. Sat. Sun.
1
Partly Cloudy
25°C32°C0.0 mm
2
Partly Cloudy
24°C34°C0.0 mm
3
Partly Cloudy
24°C34°C0.0 mm
4
Partly Cloudy
24°C34°C0.0 mm
5
Partly Cloudy
25°C34°C0.0 mm
6
Cloudy
25°C35°C0.0 mm
7
Patchy rain nearby
25°C35°C8.6 mm
8
Patchy light drizzle
23°C30°C10.3 mm
9
Partly Cloudy
24°C35°C8.1 mm
10
Partly Cloudy
24°C31°C0.0 mm
11
Partly Cloudy
24°C30°C0.0 mm
12
Partly Cloudy
24°C33°C0.0 mm
13
Partly Cloudy
25°C33°C0.0 mm
14
Partly Cloudy
25°C33°C0.0 mm
15
Overcast
24°C32°C0.0 mm
16
Partly Cloudy
25°C32°C0.0 mm
17
Cloudy
25°C33°C0.0 mm
18
Partly Cloudy
25°C34°C0.0 mm
19
Patchy rain nearby
25°C33°C0.0 mm
20
Partly Cloudy
24°C34°C0.0 mm
21
Partly Cloudy
25°C34°C0.0 mm
22
Partly Cloudy
25°C32°C0.0 mm
23
Partly Cloudy
25°C33°C0.0 mm
24
Partly Cloudy
25°C32°C0.0 mm
25
Light rain shower
25°C30°C0.5 mm
26
Patchy rain nearby
24°C27°C0.0 mm
27
Clear/Sunny
25°C33°C0.0 mm
28
Clear/Sunny
25°C33°C0.0 mm
29
Partly Cloudy
25°C32°C0.0 mm
30
Partly Cloudy
25°C33°C0.0 mm
Nearby

Where to go near Polonnaruwa in September?

Compare cities and destinations near Polonnaruwa in September to find another travel stop, a nearby alternative or a logical continuation of your stay in Polonnaruwa.

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Every month

Best time to visit Polonnaruwa month by month

Compare the weather in Polonnaruwa across all months of the year and open each detailed page to find the best time.

Frequently asked questions

Travel to to Polonnaruwa in September: your frequently asked questions

Short answers to the questions we ask ourselves before booking for this month.

Yes, it’s a good time. Conditions are favorable in Polonnaruwa in September, which places this month 8th out of 12.

Expect an average of 33°C during the day and 28°C at night, with about 122 mm of precipitation spread over 6 rainy days.

Expect about 12.1 hours of sunshine per day on average for this month.

This month is particularly suited to these activities: Gastronomy. These are the ones for which the conditions on site are most favourable.

Visitor numbers are moderate: this month is in Moderate crowds, with an index of 43/100. It is often a good compromise between weather and tranquility.

The most favorable months in Polonnaruwa are: January, February, March, May, June, July, August, September and December. You are therefore already in one of the best times of the year; shifting your plans would not gain you much in terms of weather.
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Temperatures are shown in degrees Celsius and precipitation in millimetres. Based on your country of connection, °F and inches may be more familiar to you.