May Weather in Roa, Norway

Last updated: August 27, 2025

In May, the average temperature in Roa, Norway hovers around 9°C (49°F), creating a crisp atmosphere. Temperatures can dip as low as -5°C (24°F), while the warmest days might reach up to 28°C (82°F). Expect about 94 mm (3.7 in) of precipitation spread across 13 days, contributing to an average humidity level of 84%. Whether you’re enjoying the chill or the occasional warmth, be prepared for a diverse weather experience!

May Temperature in Roa

In May in Roa, the average temperature is 9°C (49°F), with maximums soaring up to 28°C (82°F) and minimums dipping as low as -5°C (24°F). This variety in temperatures makes it advisable to pack layers for your trip, ensuring you're comfortable whether you encounter warmth or chill.

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

The chart illustrates May temperature patterns in Roa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Roa, May typically has an average temperature of 9°C (49°F), with highs reaching up to 28°C (82°F) and lows dropping to around -5°C (24°F).

Data source: Temperature data for Roa generated using information from the Copernicus Climate Change Service.

May Precipitation in Roa

In Roa in May, the precipitation amount is 94 mm (3.7 in) spread over 13 days.

May Precipitation Trends in Roa

The chart displays monthly precipitation patterns in Roa, 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 Roa, May typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 13 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

May Humidity in Roa

In Roa in May, humidity is 84%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace, making travel uncomfortable as the dampness seeps into your clothes and lingers in the air, leaving you feeling cool yet clammy.

May Average Humidity in Roa

This chart illustrates the average monthly humidity levels in Roa, 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 Roa is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Roa

In Roa 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 Roa.

Maximum UV Index Levels in Roa for May

The chart shows the monthly maximum UV Index (UVI) for Roa 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 Roa typically reaches 5, which falls under the moderate exposure category.

Data source: Roa 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 Roa Compares to Other Months

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

This table compares monthly weather conditions in Roa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (24°F)	58 mm (2.3 inches)	98%	low
February Weather	-4°C (25°F)	59 mm (2.3 inches)	95%	low
March Weather	-1°C (31°F)	63 mm (2.5 inches)	92%	moderate
April Weather	4°C (39°F)	42 mm (1.6 inches)	88%	moderate
May Weather	9°C (49°F)	94 mm (3.7 inches)	84%	moderate
June Weather	15°C (59°F)	95 mm (3.7 inches)	82%	high
July Weather	16°C (62°F)	102 mm (4.0 inches)	82%	high
August Weather	15°C (58°F)	108 mm (4.2 inches)	87%	moderate
September Weather	11°C (52°F)	102 mm (4.0 inches)	91%	moderate
October Weather	6°C (42°F)	125 mm (4.9 inches)	95%	low
November Weather	1°C (34°F)	98 mm (3.8 inches)	97%	low
December Weather	-3°C (26°F)	101 mm (4.0 inches)	98%	low