May Weather in Halden, Norway

Last updated: August 27, 2025

In Halden, Norway, the average temperature in May hovers around 11°C (53°F). During this time, you can expect a minimum of -1°C (30°F) and a peak of 29°C (85°F). With 68 mm (2.7 in) of precipitation spread over 11 days, it’s wise to prepare for some rain. The average humidity stands at a comfortable 73%, making for a pleasant atmosphere overall.

May Temperature in Halden

In May in Halden, the average temperature is 11°C (53°F). The maximum can reach 29°C (85°F), while the minimum can drop as low as -1°C (30°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

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

The chart illustrates May temperature patterns in Halden, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Halden, May typically has an average temperature of 11°C (53°F), with highs reaching up to 29°C (85°F) and lows dropping to around -1°C (30°F).

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

May Precipitation in Halden

In Halden in May, the total precipitation amount is 68 mm (2.7 in) spread over a duration of 11 days.

May Precipitation Trends in Halden

The chart displays monthly precipitation patterns in Halden, 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 Halden, May typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Halden

In Halden in May humidity is 73%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that can make outdoor activities less enjoyable, so travelers should dress in layers to stay comfortable while exploring.

May Average Humidity in Halden

This chart illustrates the average monthly humidity levels in Halden, 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 Halden is approximately 73%, 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 Halden

In Halden 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 Halden.

Maximum UV Index Levels in Halden for May

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

Data source: Halden 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 Halden Compares to Other Months

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

This table compares monthly weather conditions in Halden, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	1°C (33°F)	51 mm (2.0 inches)	94%	low
February Weather	0°C (32°F)	60 mm (2.4 inches)	92%	low
March Weather	2°C (36°F)	58 mm (2.3 inches)	89%	moderate
April Weather	6°C (44°F)	31 mm (1.2 inches)	82%	moderate
May Weather	11°C (53°F)	68 mm (2.7 inches)	73%	moderate
June Weather	16°C (62°F)	76 mm (3.0 inches)	71%	high
July Weather	18°C (64°F)	95 mm (3.7 inches)	72%	high
August Weather	16°C (61°F)	102 mm (4.0 inches)	77%	moderate
September Weather	13°C (55°F)	91 mm (3.6 inches)	86%	moderate
October Weather	8°C (47°F)	106 mm (4.2 inches)	92%	low
November Weather	4°C (39°F)	79 mm (3.1 inches)	93%	low
December Weather	1°C (34°F)	78 mm (3.1 inches)	93%	low