January Weather in Horana South, Sri Lanka

Last updated: August 31, 2025

In January, the average temperature in Horana South, Sri Lanka is a warm 27°C (81°F), with minimums dipping to 19°C (66°F) and highs reaching up to 35°C (95°F). Expect around 87 mm (3.4 in) of precipitation over 8 days, and humidity levels averaging 77%, creating a tropical atmosphere throughout the month.

January Temperature in Horana South

In January in Horana South, 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 Horana South.

January Weather in Horana South: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Horana South, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Horana South, 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 Horana South generated using information from the Copernicus Climate Change Service.

January Precipitation in Horana South

In Horana South in January, the precipitation amount is 87 mm (3.4 in), which occurs over a span of 8 days.

January Precipitation Trends in Horana South

The chart displays monthly precipitation patterns in Horana South, 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 Horana South, January typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Horana South

In Horana South 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 Horana South

This chart illustrates the average monthly humidity levels in Horana South, 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 Horana South 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 Horana South

In Horana South in January, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Horana South.

Maximum UV Index Levels in Horana South for January

The chart shows the monthly maximum UV Index (UVI) for Horana South 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 Horana South typically reaches 11, which falls under the extreme exposure category.

Data source: Horana South 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 Horana South Compares to Other Months

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

This table compares monthly weather conditions in Horana South, 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)	87 mm (3.4 inches)	77%	extreme
February Weather	28°C (82°F)	87 mm (3.4 inches)	73%	extreme
March Weather	28°C (83°F)	159 mm (6.3 inches)	74%	extreme
April Weather	28°C (83°F)	154 mm (6.1 inches)	74%	extreme
May Weather	28°C (82°F)	306 mm (12.1 inches)	76%	extreme
June Weather	28°C (82°F)	287 mm (11.3 inches)	82%	extreme
July Weather	27°C (81°F)	212 mm (8.4 inches)	82%	extreme
August Weather	27°C (81°F)	249 mm (9.8 inches)	83%	extreme
September Weather	27°C (81°F)	251 mm (9.9 inches)	82%	extreme
October Weather	27°C (80°F)	352 mm (13.9 inches)	81%	extreme
November Weather	27°C (80°F)	323 mm (12.7 inches)	80%	extreme
December Weather	27°C (80°F)	207 mm (8.2 inches)	80%	very high