May Weather in Puttalam, Sri Lanka

Last updated: August 31, 2025

In May, the average temperature in Puttalam, Sri Lanka is a warm 29°C (84°F), with a minimum of 25°C (78°F) and a maximum reaching 32°C (90°F). Be prepared for an average precipitation of 182 mm (7.2 in) spread across 25 days, resulting in a humid environment with an average humidity of 76%.

May Temperature in Puttalam

In May in Puttalam, the average temperature is 29°C (84°F). Maximum temperatures can reach 32°C (90°F), while minimum temperatures can drop as low as 25°C (78°F). This climate makes Puttalam an ideal destination for travelers seeking warm, pleasant weather.

May Weather in Puttalam: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Puttalam, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Puttalam, May typically has an average temperature of 29°C (84°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (78°F).

Data source: Temperature data for Puttalam generated using information from the Copernicus Climate Change Service.

May Precipitation in Puttalam

In Puttalam in May, the precipitation amount is 182 mm (7.2 in) over the course of 25 days.

May Precipitation Trends in Puttalam

The chart displays monthly precipitation patterns in Puttalam, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Puttalam, May typically receives around 182 mm (7.2 inches) of precipitation spread over approximately 25 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Puttalam

In Puttalam in May, humidity is 76%. With an average temperature of 29°C (84°F), this humidity feels like a warm embrace that clings to your skin, making outdoor activities a challenge and encouraging travelers to seek shade or cool refreshments frequently.

May Average Humidity in Puttalam

This chart illustrates the average monthly humidity levels in Puttalam, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Puttalam is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Puttalam

In Puttalam in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Puttalam.

Maximum UV Index Levels in Puttalam for May

The chart shows the monthly maximum UV Index (UVI) for Puttalam in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Puttalam typically reaches 13, which falls under the extreme exposure category.

Data source: Puttalam May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Puttalam Compares to Other Months

Weather in Puttalam varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Puttalam, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Puttalam, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (80°F)	46 mm (1.8 inches)	77%	extreme
February Weather	27°C (81°F)	16 mm (0.6 inches)	73%	extreme
March Weather	28°C (83°F)	52 mm (2.0 inches)	74%	extreme
April Weather	29°C (84°F)	99 mm (3.9 inches)	74%	extreme
May Weather	29°C (84°F)	182 mm (7.2 inches)	76%	extreme
June Weather	28°C (83°F)	102 mm (4.0 inches)	82%	extreme
July Weather	28°C (83°F)	51 mm (2.0 inches)	82%	extreme
August Weather	28°C (82°F)	78 mm (3.1 inches)	83%	extreme
September Weather	27°C (82°F)	136 mm (5.3 inches)	82%	extreme
October Weather	27°C (81°F)	269 mm (10.6 inches)	81%	extreme
November Weather	27°C (81°F)	292 mm (11.5 inches)	80%	extreme
December Weather	27°C (80°F)	134 mm (5.3 inches)	80%	very high