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May Weather in Ruhnu, Estonia

Last updated: August 23, 2025

In Ruhnu, Estonia, the average temperature in May is a crisp 9°C (48°F). Expect a minimum of 2°C (36°F) and a pleasant maximum of 20°C (67°F). During this month, precipitation averages around 35 mm (1.4 in), typically falling over 7 days, while the average humidity hovers at 72%. Enjoy this transitional season!

May Temperature in Ruhnu

In May in Ruhnu, the average temperature is 9°C (48°F). Maximum temperatures can reach 20°C (67°F), while minimums can dip as low as 2°C (36°F). Travelers should prepare for mild weather with the possibility of cooler evenings and occasional warmth during the day.

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

The chart illustrates May temperature patterns in Ruhnu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ruhnu, May typically has an average temperature of 9°C (48°F), with highs reaching up to 20°C (67°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec343234394860656559514437
Data source: Temperature data for Ruhnu 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 Ruhnu

In Ruhnu in May, the precipitation amount is 35 mm (1.4 in) over the course of 7 days.

May Precipitation Trends in Ruhnu

The chart displays monthly precipitation patterns in Ruhnu, 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 Ruhnu, May typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec4843472835457791921088764
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ruhnu

In Ruhnu in May, humidity is 72%. With an average temperature of 9°C (48°F), this humidity feels like a chilly dampness that clings to your skin, making it essential to dress in layers for traveling, as the cold and moisture can be quite uncomfortable for prolonged outdoor activities.

May Average Humidity in Ruhnu

This chart illustrates the average monthly humidity levels in Ruhnu, 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 Ruhnu is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%91%90%87%72%76%76%80%87%91%92%93%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ruhnu

In Ruhnu in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Ruhnu, you can refer to this Hourly UV Index in Ruhnu.

Maximum UV Index Levels in Ruhnu for May

The chart shows the monthly maximum UV Index (UVI) for Ruhnu 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 Ruhnu typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123467764211
Data source: Ruhnu 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 Ruhnu Compares to Other Months

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

This table compares monthly weather conditions in Ruhnu, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)48 mm (1.9 inches)93%low
February Weather0°C (32°F)43 mm (1.7 inches)91%low
March Weather1°C (34°F)47 mm (1.9 inches)90%moderate
April Weather4°C (39°F)28 mm (1.1 inches)87%moderate
May Weather9°C (48°F)35 mm (1.4 inches)72%high
June Weather16°C (60°F)45 mm (1.8 inches)76%high
July Weather18°C (65°F)77 mm (3.0 inches)76%high
August Weather18°C (65°F)91 mm (3.6 inches)80%high
September Weather15°C (59°F)92 mm (3.6 inches)87%moderate
October Weather11°C (51°F)108 mm (4.2 inches)91%low
November Weather7°C (44°F)87 mm (3.4 inches)92%low
December Weather3°C (37°F)64 mm (2.5 inches)93%low

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