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December Weather in Ruiru, Kenya

Last updated: August 23, 2025

In December, the average temperature in Ruiru, Kenya is a pleasant 20°C (68°F). Expect a range from a cozy 12°C (54°F) to a warm 28°C (83°F). Be prepared for some rainfall, as 87 mm (3.4 in) of precipitation is expected over 15 days, contributing to an average humidity of 84%.

December Temperature in Ruiru

In December in Ruiru, the average temperature is 20°C (68°F). The maximum can reach 28°C (83°F), and the minimum can be as low as 12°C (54°F). This makes it an ideal time for travelers to enjoy comfortable weather and explore the attractions in Ruiru.

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

The chart illustrates December temperature patterns in Ruiru, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ruiru, December typically has an average temperature of 20°C (68°F), with highs reaching up to 28°C (83°F) and lows dropping to around 12°C (54°F).
JanFebMarAprMayJunJulAugSepOctNovDec697071706866656667696868
Data source: Temperature data for Ruiru 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 Ruiru

In Ruiru in December, the precipitation amount is 87 mm (3.4 in) over the course of 15 days.

December Precipitation Trends in Ruiru

The chart displays monthly precipitation patterns in Ruiru, 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 Ruiru, December typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec312782154105401518246912887
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ruiru

In Ruiru in December humidity is 84%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket, making travel a challenge as the air clings to your skin, and every step feels heavier in the mugginess.

December Average Humidity in Ruiru

This chart illustrates the average monthly humidity levels in Ruiru, 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 Ruiru is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%53%49%54%71%70%63%60%63%76%89%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ruiru

In Ruiru in December, 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 Ruiru.

Maximum UV Index Levels in Ruiru for December

The chart shows the monthly maximum UV Index (UVI) for Ruiru 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 Ruiru typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161311111314141313
Data source: Ruiru 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 Ruiru Compares to Other Months

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

This table compares monthly weather conditions in Ruiru, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)31 mm (1.2 inches)64%extreme
February Weather21°C (70°F)27 mm (1.1 inches)53%extreme
March Weather22°C (72°F)82 mm (3.2 inches)49%extreme
April Weather21°C (70°F)154 mm (6.1 inches)54%extreme
May Weather20°C (68°F)105 mm (4.1 inches)71%extreme
June Weather19°C (66°F)40 mm (1.6 inches)70%extreme
July Weather18°C (65°F)15 mm (0.6 inches)63%extreme
August Weather19°C (66°F)18 mm (0.7 inches)60%extreme
September Weather20°C (68°F)24 mm (1.0 inches)63%extreme
October Weather21°C (70°F)69 mm (2.7 inches)76%extreme
November Weather20°C (69°F)128 mm (5.0 inches)89%extreme
December Weather20°C (68°F)87 mm (3.4 inches)84%extreme

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