May Weather in Harku, Estonia

Last updated: August 23, 2025

In Harku, Estonia, the average temperature in May hovers around 9°C (49°F), with the minimum dipping to -1°C (30°F) and a pleasant maximum reaching 23°C (74°F). Expect about 52 mm (2.0 in) of precipitation spread over 9 days, contributing to an average humidity level of 76%.

May Temperature in Harku

In May in Harku, the average temperature is 9°C (49°F), with maximums reaching up to 23°C (74°F) and minimums dipping as low as -1°C (30°F). Be prepared for a range of temperatures while traveling, ensuring you have both warm and cool clothing options.

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

The chart illustrates May temperature patterns in Harku, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harku, May typically has an average temperature of 9°C (49°F), with highs reaching up to 23°C (74°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec302833404960646355474032
Data source: Temperature data for Harku 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 Harku

In Harku in May, the precipitation amount is 52 mm (2.0 in) over a span of 9 days.

May Precipitation Trends in Harku

The chart displays monthly precipitation patterns in Harku, 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 Harku, May typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec45494939525365101781086262
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Harku

In Harku in May, humidity is 76%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making outdoor adventures a bit uncomfortable as the dampness seeps into your clothes and lingers in the air, often leading to a sense of coolness that can be refreshing but also dampens the joy of exploration.

May Average Humidity in Harku

This chart illustrates the average monthly humidity levels in Harku, 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 Harku is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%91%90%87%76%80%80%83%87%90%91%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Harku

In Harku in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Harku.

Maximum UV Index Levels in Harku for May

The chart shows the monthly maximum UV Index (UVI) for Harku 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 Harku typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec113457754211
Data source: Harku 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 Harku Compares to Other Months

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

This table compares monthly weather conditions in Harku, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)45 mm (1.8 inches)92%low
February Weather-2°C (29°F)49 mm (1.9 inches)91%low
March Weather0°C (33°F)48 mm (1.9 inches)90%moderate
April Weather4°C (40°F)39 mm (1.5 inches)87%moderate
May Weather9°C (49°F)52 mm (2.0 inches)76%moderate
June Weather16°C (60°F)53 mm (2.1 inches)80%high
July Weather18°C (65°F)65 mm (2.6 inches)80%high
August Weather17°C (63°F)101 mm (4.0 inches)83%moderate
September Weather13°C (56°F)78 mm (3.1 inches)87%moderate
October Weather8°C (47°F)108 mm (4.2 inches)90%low
November Weather4°C (40°F)62 mm (2.4 inches)91%low
December Weather0°C (33°F)62 mm (2.4 inches)90%low

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