Sarpsborg, Norway — Weather in May 2027

Monthly climate averages for Sarpsborg, Norway. Based on 10-year ERA5 reanalysis data.

Cfb Oceanic
6.4 /10
Fair

May is a fair month in Sarpsborg

Climate Overview

Sarpsborg, Norway in May has mild conditions, with highs averaging 16.3°C (61°F) and noticeably cooler mornings. Sea temperature stays cool at 13°C (55°F).

This month falls at the end of Spring.

Daily highs in May gradually rise from around 13°C (55°F) at the start to 19°C (66°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 12.3h of sunshine at the start of May, increasing to 13.7h by the end.

The warmest days tend to fall around the 31th, averaging 19.8°C (68°F).

Compared to April, this month is about 6°C warmer with 2 more rainy days. Temperatures will rise further into June.

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Monthly May Averages

Temperature
16°C / 8°C
Feels Like
14°C / 5°C
Rain
9 days · 51 mm
Sunshine
12.5h / day
Humidity
66% — Humid
Wind
18 km/h
Wind Direction
SSW (203°)
Gusts
40 km/h
Daylight
17 h
Cloud Cover
54%
Clear Sky Days
5.2
UV Index
5.1 — High
Sea Temperature
13°C
Dew Point
6°C — Dry
Moon Phase
Waxing Gibbous · 66%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

24°C 20°C 16°C 12°C 8°C 4°C 0°C 151015202531
High Low

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 151015202531
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202531
Sunshine

Daily Wind Speed

0 5 10 15 20 25 151015202531
Wind Speed
Sun Position
Sunrise 04:43
Daylight 17h
Sunset 21:42

Compare Months

January
Poor
Temp
1°C / -4°C
Feels Like
-4°C / -8°C
Rain
11days (71 mm) Wet
Sun
2.6h Poor
Humidity
85% Humid
UV
0.5 Low
Snow Days
10days
View Details
February
Poor
Temp
2°C / -3°C
Feels Like
-2°C / -7°C
Rain
10days (58 mm) Wet
Sun
4.8h Fair
Humidity
83% Humid
UV
1.1 Low
Snow Days
9days
View Details
March
Poor
Temp
6°C / -1°C
Feels Like
1°C / -5°C
Rain
9days (50 mm) Wet
Sun
7.2h Good
Humidity
78% Humid
UV
2.3 Moderate
Snow Days
6days
View Details
April
Fair
Temp
11°C / 2°C
Feels Like
7°C / -2°C
Rain
7days (43 mm) Good
Sun
10.4h Excellent
Humidity
68% Muggy
UV
3.7 Moderate
Snow Days
2days
View Details
May best
Fair
Temp
16°C / 8°C
Feels Like
14°C / 5°C
Rain
9days (51 mm) Wet
Sun
12.5h Excellent
Humidity
66% Muggy
UV
5.1 High
View Details
June best
Good
Temp
20°C / 12°C
Feels Like
19°C / 11°C
Rain
11days (73 mm) Wet
Sun
13.4h Excellent
Humidity
69% Muggy
UV
5.7 High
View Details
July best
Excellent
Temp
21°C / 14°C
Feels Like
20°C / 13°C
Rain
12days (92 mm) Wet
Sun
13h Excellent
Humidity
72% Muggy
UV
5 Moderate
View Details
August best
Excellent
Temp
20°C / 13°C
Feels Like
18°C / 12°C
Rain
13days (91 mm) Wet
Sun
10.7h Excellent
Humidity
77% Humid
UV
4.3 Moderate
View Details
September best
Good
Temp
16°C / 11°C
Feels Like
15°C / 9°C
Rain
12days (94 mm) Wet
Sun
7.7h Good
Humidity
80% Humid
UV
3 Moderate
View Details
October
Poor
Temp
10°C / 6°C
Feels Like
7°C / 3°C
Rain
13days (93 mm) Wet
Sun
4.9h Fair
Humidity
84% Humid
UV
1.5 Low
Snow Days
1days
View Details
November
Poor
Temp
5°C / 2°C
Feels Like
2°C / -2°C
Rain
12days (78 mm) Wet
Sun
2.5h Poor
Humidity
88% Very Muggy
UV
0.6 Low
Snow Days
4days
View Details
December
Poor
Temp
2°C / -2°C
Feels Like
-2°C / -6°C
Rain
13days (70 mm) Wet
Sun
1.7h Poor
Humidity
89% Very Muggy
UV
0.3 Low
Snow Days
8days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 1°C / -4°C -4°C / -8°C 11days (71 mm) Wet 2.6h Poor 85% Humid 0.5 Low Poor View Details
February 2°C / -3°C -2°C / -7°C 10days (58 mm) Wet 4.8h Fair 83% Humid 1.1 Low Poor View Details
March 6°C / -1°C 1°C / -5°C 9days (50 mm) Wet 7.2h Good 78% Humid 2.3 Moderate Poor View Details
April 11°C / 2°C 7°C / -2°C 7days (43 mm) Good 10.4h Excellent 68% Muggy 3.7 Moderate Fair View Details
May best 16°C / 8°C 14°C / 5°C 9days (51 mm) Wet 12.5h Excellent 66% Muggy 5.1 High Fair View Details
June best 20°C / 12°C 19°C / 11°C 11days (73 mm) Wet 13.4h Excellent 69% Muggy 5.7 High Good View Details
July best 21°C / 14°C 20°C / 13°C 12days (92 mm) Wet 13h Excellent 72% Muggy 5 Moderate Excellent View Details
August best 20°C / 13°C 18°C / 12°C 13days (91 mm) Wet 10.7h Excellent 77% Humid 4.3 Moderate Excellent View Details
September best 16°C / 11°C 15°C / 9°C 12days (94 mm) Wet 7.7h Good 80% Humid 3 Moderate Good View Details
October 10°C / 6°C 7°C / 3°C 13days (93 mm) Wet 4.9h Fair 84% Humid 1.5 Low Poor View Details
November 5°C / 2°C 2°C / -2°C 12days (78 mm) Wet 2.5h Poor 88% Very Muggy 0.6 Low Poor View Details
December 2°C / -2°C -2°C / -6°C 13days (70 mm) Wet 1.7h Poor 89% Very Muggy 0.3 Low Poor View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Layered clothingLight jacketUmbrellaComfortable walking shoes

Frequently Asked Questions

May is typically fair for visiting Sarpsborg, with average highs of 16°C (61°F) and around 9 rainy days. Sarpsborg, Norway in May has mild conditions, with highs averaging 16.3°C (61°F) and noticeably cooler mornings. Sea tem
Sarpsborg typically sees around 9 rainy days in May with 51 mm (2 in) of total rainfall. An umbrella should suffice.
Nights in Sarpsborg during May are cool at around 8°C (46°F). Bring a jacket or sweater for evenings.
With highs of 16°C (61°F) and lows of 8°C (46°F) in May, we recommend: Layered clothing, Light jacket, Umbrella, Comfortable walking shoes. Comfortable walking shoes are essential.
Yes, May offers some of the best weather conditions in Sarpsborg with comfortable temperatures and lower chances of rain.
The average UV index in Sarpsborg during May is 5 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Sarpsborg gets approximately 17 hours of daylight per day in May, with around 13 hours of sunshine.
Snow is uncommon in Sarpsborg during May based on 10-year climate averages.

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