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May Weather in Siaya, Kenya

Last updated: August 23, 2025

In Siaya, Kenya, the average temperature in May hovers around 23°C (73°F), making it a pleasant time to visit. During this month, temperatures can dip to a minimum of 18°C (64°F) and soar to a maximum of 29°C (84°F). However, be prepared for a fair amount of rainfall, with 269 mm (10.6 in) of precipitation expected over the 30 days. Additionally, the average humidity is a notable 81%, contributing to a warm and lush environment.

May Temperature in Siaya

In May in Siaya, the average temperature is 23°C (73°F). The maximum can reach 29°C (84°F), while the minimum can be as low as 18°C (64°F). This comfortable climate makes it an ideal time for traveling and enjoying outdoor activities.

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

The chart illustrates May temperature patterns in Siaya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Siaya, May typically has an average temperature of 23°C (73°F), with highs reaching up to 29°C (84°F) and lows dropping to around 18°C (64°F).
JanFebMarAprMayJunJulAugSepOctNovDec747574737372727273737373
Data source: Temperature data for Siaya 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.

May Precipitation in Siaya

In Siaya in May, the total precipitation amount is 269 mm (10.6 in) over the course of 30 days.

May Precipitation Trends in Siaya

The chart displays monthly precipitation patterns in Siaya, 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 Siaya, May typically receives around 269 mm (10.6 inches) of precipitation spread over approximately 30 days.
JanFebMarAprMayJunJulAugSepOctNovDec115111219283269142111142159243219181
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Siaya

In Siaya in May, humidity is 81%. With an average temperature of 23°C (73°F), this humidity feels like a heavy blanket wrapping around you, making every step feel more laborious while traveling and causing you to constantly seek out shade or a cool breeze for relief.

May Average Humidity in Siaya

This chart illustrates the average monthly humidity levels in Siaya, 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 Siaya is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%72%69%73%81%75%71%69%73%80%85%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Siaya

In Siaya 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 Siaya.

Maximum UV Index Levels in Siaya for May

The chart shows the monthly maximum UV Index (UVI) for Siaya 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 Siaya typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141516151311121213131212
Data source: Siaya 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 Siaya Compares to Other Months

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

This table compares monthly weather conditions in Siaya, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather23°C (74°F)115 mm (4.5 inches)72%extreme
February Weather24°C (75°F)111 mm (4.4 inches)72%extreme
March Weather23°C (74°F)219 mm (8.6 inches)69%extreme
April Weather23°C (73°F)283 mm (11.1 inches)73%extreme
May Weather23°C (73°F)269 mm (10.6 inches)81%extreme
June Weather22°C (73°F)142 mm (5.6 inches)75%extreme
July Weather22°C (72°F)111 mm (4.4 inches)71%extreme
August Weather22°C (73°F)142 mm (5.6 inches)69%extreme
September Weather23°C (73°F)159 mm (6.2 inches)73%extreme
October Weather23°C (73°F)243 mm (9.6 inches)80%extreme
November Weather23°C (73°F)218 mm (8.6 inches)85%extreme
December Weather23°C (73°F)181 mm (7.1 inches)80%extreme

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