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December Weather in Kalmunai, Sri Lanka

Last updated: August 31, 2025

In December, the average temperature in Kalmunai, Sri Lanka reaches a pleasant 26°C (79°F), with minimums dipping to 23°C (73°F) and maximums soaring to 30°C (86°F). However, expect a good amount of rain, as 253 mm (9.9 in) of precipitation can occur over 23 days, resulting in an average humidity of 86%.

December Temperature in Kalmunai

In December in Kalmunai, the average temperature is 26°C (79°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 23°C (73°F). This pleasant climate makes Kalmunai an ideal destination for travelers seeking warm and comfortable weather.

December Weather in Kalmunai: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Kalmunai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kalmunai, December typically has an average temperature of 26°C (79°F), with highs reaching up to 30°C (86°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec787981838485848483818079
Data source: Temperature data for Kalmunai generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Kalmunai

In Kalmunai in December, the total precipitation amount reaches 253 mm (9.9 in) over the course of 23 days.

December Precipitation Trends in Kalmunai

The chart displays monthly precipitation patterns in Kalmunai, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Kalmunai, December typically receives around 253 mm (9.9 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec1399478566929445091184317253
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kalmunai

In Kalmunai in December, humidity is 86%. With an average temperature of 26°C (79°F), this humidity feels like a warm, heavy blanket clinging to your skin, making even short walks a challenge and turning travel into a sticky, sweat-inducing experience.

December Average Humidity in Kalmunai

This chart illustrates the average monthly humidity levels in Kalmunai, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Kalmunai is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%69%69%79%85%81%85%81%89%88%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kalmunai

In Kalmunai in December, 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 Kalmunai.

Maximum UV Index Levels in Kalmunai for December

The chart shows the monthly maximum UV Index (UVI) for Kalmunai in December, 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 December, the maximum UV index in Kalmunai typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121315151413121414131211
Data source: Kalmunai December 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 December Weather in Kalmunai Compares to Other Months

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

This table compares monthly weather conditions in Kalmunai, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)139 mm (5.5 inches)80%extreme
February Weather26°C (79°F)93 mm (3.7 inches)72%extreme
March Weather27°C (81°F)78 mm (3.1 inches)69%extreme
April Weather28°C (83°F)56 mm (2.2 inches)69%extreme
May Weather29°C (84°F)69 mm (2.7 inches)79%extreme
June Weather29°C (85°F)29 mm (1.1 inches)85%extreme
July Weather29°C (85°F)44 mm (1.7 inches)81%extreme
August Weather29°C (84°F)50 mm (2.0 inches)85%extreme
September Weather28°C (83°F)91 mm (3.6 inches)81%extreme
October Weather27°C (82°F)184 mm (7.3 inches)89%extreme
November Weather26°C (80°F)317 mm (12.5 inches)88%extreme
December Weather26°C (79°F)253 mm (9.9 inches)86%extreme

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