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May Weather in Roseburg, United States

Last updated: June 24, 2025

In Roseburg, United States during May, the average temperature is a pleasant 13°C (56°F). Expect a minimum of 1°C (35°F) and a maximum of 30°C (87°F). Be prepared for some rain, as precipitation averages 64 mm (2.5 in) over 9 days. The air humidity is quite high, averaging around 83%, making it a great month for cozy indoor activities or refreshing outdoor adventures!

May Temperature in Roseburg

In May, in Roseburg, the average temperature is 13°C (56°F). The maximum can reach 30°C (87°F), while the minimum can drop as low as 1°C (35°F). This varied climate makes Roseburg an ideal destination for travelers seeking both warm and cool experiences during their visit.

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

The chart illustrates May temperature patterns in Roseburg, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roseburg, May typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (87°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec414145505562686862524540
Data source: Temperature data for Roseburg 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 Roseburg

In Roseburg in May, the precipitation amount is 64 mm (2.5 in) over a span of 9 days.

May Precipitation Trends in Roseburg

The chart displays monthly precipitation patterns in Roseburg, 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 Roseburg, May typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec1461881291216432276475116153
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Roseburg

In Roseburg in May humidity is 83%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making travel a bit uncomfortable as the air feels heavy and the moisture clings to your skin.

May Average Humidity in Roseburg

This chart illustrates the average monthly humidity levels in Roseburg, 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 Roseburg is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%85%86%83%83%83%78%67%66%77%87%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Roseburg

In Roseburg in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Roseburg.

Maximum UV Index Levels in Roseburg for May

The chart shows the monthly maximum UV Index (UVI) for Roseburg 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 Roseburg typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec346810101098632
Data source: Roseburg 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 Roseburg Compares to Other Months

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

This table compares monthly weather conditions in Roseburg, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)146 mm (5.7 inches)84%moderate
February Weather5°C (41°F)188 mm (7.4 inches)85%moderate
March Weather7°C (45°F)129 mm (5.1 inches)86%high
April Weather10°C (50°F)121 mm (4.8 inches)83%very high
May Weather13°C (56°F)64 mm (2.5 inches)83%very high
June Weather17°C (62°F)32 mm (1.3 inches)83%very high
July Weather20°C (68°F)2 mm (0.1 inches)78%very high
August Weather20°C (68°F)7 mm (0.3 inches)67%very high
September Weather17°C (63°F)64 mm (2.5 inches)66%very high
October Weather11°C (53°F)75 mm (3.0 inches)77%high
November Weather7°C (46°F)116 mm (4.6 inches)87%moderate
December Weather4°C (40°F)153 mm (6.0 inches)87%low

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