January Weather in Katunayaka, Sri Lanka

Last updated: August 31, 2025

In January, the average temperature in Katunayaka, Sri Lanka is a warm 27°C (81°F), with a minimum of 19°C (66°F) and a maximum reaching up to 35°C (95°F). Expect 57 mm (2.2 in) of precipitation over approximately 6 days, and with an average humidity of 77%, it's a perfect time to embrace the warmth while staying hydrated!

January Temperature in Katunayaka

In January in Katunayaka, the average temperature is 27°C (81°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 19°C (66°F). This pleasant climate makes it an ideal time to explore and enjoy outdoor activities in Katunayaka.

January Weather in Katunayaka: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Katunayaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Katunayaka, January typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dropping to around 19°C (66°F).

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

January Precipitation in Katunayaka

In Katunayaka in January, the precipitation amount is 57 mm (2.2 in) over a span of 6 days.

January Precipitation Trends in Katunayaka

The chart displays monthly precipitation patterns in Katunayaka, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Katunayaka, January typically receives around 57 mm (2.2 inches) of precipitation spread over approximately 6 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

January Humidity in Katunayaka

In Katunayaka in January, humidity is 77%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket, making travel feel sticky and heavy, as sweat clings to the skin and the air becomes thick, causing you to long for refreshing breezes and cool shade.

January Average Humidity in Katunayaka

This chart illustrates the average monthly humidity levels in Katunayaka, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Katunayaka is approximately 77%, offering insight into how humid the weather typically is during this month.

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

January UV Index in Katunayaka

In Katunayaka in January, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Katunayaka.

Maximum UV Index Levels in Katunayaka for January

The chart shows the monthly maximum UV Index (UVI) for Katunayaka in January, 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 January, the maximum UV index in Katunayaka typically reaches 12, which falls under the extreme exposure category.

Data source: Katunayaka January 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 January Weather in Katunayaka Compares to Other Months

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

This table compares monthly weather conditions in Katunayaka, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	57 mm (2.2 inches)	77%	extreme
February Weather	28°C (83°F)	30 mm (1.2 inches)	73%	extreme
March Weather	29°C (84°F)	93 mm (3.6 inches)	74%	extreme
April Weather	28°C (83°F)	145 mm (5.7 inches)	74%	extreme
May Weather	28°C (83°F)	266 mm (10.5 inches)	76%	extreme
June Weather	28°C (82°F)	248 mm (9.8 inches)	82%	extreme
July Weather	27°C (82°F)	193 mm (7.6 inches)	82%	extreme
August Weather	27°C (81°F)	236 mm (9.3 inches)	83%	extreme
September Weather	27°C (81°F)	233 mm (9.2 inches)	82%	extreme
October Weather	27°C (80°F)	358 mm (14.1 inches)	81%	extreme
November Weather	27°C (80°F)	370 mm (14.6 inches)	80%	extreme
December Weather	27°C (80°F)	134 mm (5.3 inches)	80%	very high