Our verdict
The best time to visit Polonnaruwa is January
During the warmer months, temperatures in Polonnaruwa can rise to a maximum of 36℃ (97℉). In the colder months such as January, temperatures usually get down to an average minimum of 20℃ (68℉).
The days are longest in Polonnaruwa in July, so if you want to see the sights during the day when the sun is up for the longest time, it’s best to visit around that time of year. The wet season in Polonnaruwa falls around October, so if you prefer the dryer weather, you should look to visit in June instead.
Learn everything you need to know to help you decide when to go to Polonnaruwa below, and don’t forget to use the awesome travel tools we know and love to help you find the best deals and make booking your vacation a breeze!
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Polonnaruwa seasons
Before you continue, it’s important to know when the seasons are in Polonnaruwa as they might be different to yours depending on where in the world you’re travelling from. Polonnaruwa is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Polonnaruwa
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Polonnaruwa for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Polonnaruwa climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Polonnaruwa for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Polonnaruwa in January
- Average temperature: 24℃ (76℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 20℃ (68℉)
- Average humidity: 82%
- Average sunny days: 12 days
- Average rainfall: 42mm (2") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in January, make sure you pack t-shirts and light clothing.
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Polonnaruwa in February
- Average temperature: 25℃ (77℉)
- Average high temperature: 31℃ (88℉)
- Average low temperature: 20℃ (68℉)
- Average humidity: 79%
- Average sunny days: 13 days
- Average rainfall: 47mm (2") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in February, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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Polonnaruwa in March
- Average temperature: 27℃ (81℉)
- Average high temperature: 34℃ (93℉)
- Average low temperature: 21℃ (70℉)
- Average humidity: 73%
- Average sunny days: 15 days
- Average rainfall: 38mm (2") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in March, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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Polonnaruwa in April
- Average temperature: 28℃ (83℉)
- Average high temperature: 35℃ (95℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 73%
- Average sunny days: 4 days
- Average rainfall: 103mm (4") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in April, make sure you pack t-shirts, shorts and sun protection.
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Polonnaruwa in May
- Average temperature: 29℃ (84℉)
- Average high temperature: 34℃ (94℉)
- Average low temperature: 25℃ (76℉)
- Average humidity: 72%
- Average sunny days: 10 days
- Average rainfall: 83mm (3") over 17 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in May, make sure you pack t-shirts and shorts.. It stays warm all day and night.
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Polonnaruwa in June
- Average temperature: 29℃ (84℉)
- Average high temperature: 34℃ (93℉)
- Average low temperature: 25℃ (77℉)
- Average humidity: 67%
- Average sunny days: 15 days
- Average rainfall: 13mm (1") over 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in June, make sure you pack t-shirts and shorts.. It stays warm all day and night.
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Polonnaruwa in July
- Average temperature: 28℃ (83℉)
- Average high temperature: 34℃ (93℉)
- Average low temperature: 25℃ (76℉)
- Average humidity: 66%
- Average sunny days: 16 days
- Average rainfall: 16mm (1") over 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in July, make sure you pack t-shirts and shorts.. It stays warm all day and night.
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Polonnaruwa in August
- Average temperature: 28℃ (83℉)
- Average high temperature: 34℃ (93℉)
- Average low temperature: 24℃ (76℉)
- Average humidity: 67%
- Average sunny days: 15 days
- Average rainfall: 30mm (1") over 11 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in August, make sure you pack t-shirts and shorts.. It stays warm all day and night.
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Polonnaruwa in September
- Average temperature: 28℃ (83℉)
- Average high temperature: 34℃ (93℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 67%
- Average sunny days: 13 days
- Average rainfall: 53mm (2") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in September, make sure you pack t-shirts and shorts.. It stays warm all day and night.
Polonnaruwa in October
- Average temperature: 27℃ (81℉)
- Average high temperature: 33℃ (91℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 75%
- Average sunny days: 6 days
- Average rainfall: 214mm (8") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in October, make sure you pack t-shirts and shorts.. It stays warm all day and night.
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Polonnaruwa in November
- Average temperature: 26℃ (78℉)
- Average high temperature: 31℃ (87℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 82%
- Average sunny days: 4 days
- Average rainfall: 166mm (7") over 24 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in November, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.
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Polonnaruwa in December
- Average temperature: 25℃ (77℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 21℃ (71℉)
- Average humidity: 84%
- Average sunny days: 6 days
- Average rainfall: 127mm (5") over 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Polonnaruwa in December, make sure you pack t-shirts and light clothing.
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