Fredrikstad, Norway — Weather in August 2026

Climate Overview

Fredrikstad, Norway in August has mild conditions, with highs averaging 19.4°C (67°F) and noticeably cooler mornings. Rain falls on about 13 days this month. Sea temperature stays cool at 19°C (66°F).

This month falls at the end of Summer.

Temperatures remain fairly steady throughout August, with daily highs around 19°C (66°F).

August sees fairly even rainfall, totalling about 93 mm across the month.

Expect around 11.8h of sunshine at the start of August, decreasing to 9.2h by the end.

The warmest days tend to fall around the 1th, averaging 20.2°C (68°F).

Temperatures begin dropping heading into September.

Monthly August Averages

Temperature

19°C / 14°C

Feels Like

18°C / 13°C

Rain

13 days · 91 mm

Sunshine

10.7h / day

Humidity

77% — Humid

Wind

18 km/h

Wind Direction

SSW (207°)

Gusts

40 km/h

Daylight

15.4 h

Cloud Cover

59%

Clear Sky Days

2.2

UV Index

4.3 — Moderate

Sea Temperature

19°C

Dew Point

13°C — Comfortable

Moon Phase

Waxing Crescent · 3%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

High Low

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 05:34

Daylight 15.5h

Sunset 21:06

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

1 of the last 5 yearly records were warmer than this month's long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	1°C / -3°C	-3°C / -7°C	11days (71 mm) Wet	2.6h Poor	83% Humid	0.5 Low	Poor	View Details
February	3°C / -2°C	-2°C / -6°C	10days (58 mm) Wet	4.8h Fair	81% Humid	1.1 Low	Poor	View Details
March	5°C / 0°C	1°C / -4°C	9days (50 mm) Wet	7.2h Good	78% Humid	2.3 Moderate	Poor	View Details
April	11°C / 3°C	7°C / -1°C	7days (43 mm) Good	10.4h Excellent	68% Muggy	3.8 Moderate	Fair	View Details
May best	16°C / 8°C	14°C / 5°C	9days (51 mm) Wet	12.5h Excellent	66% Muggy	5.2 High	Fair	View Details
June best	20°C / 13°C	19°C / 11°C	11days (73 mm) Wet	13.4h Excellent	69% Muggy	5.7 High	Good	View Details
July best	21°C / 15°C	20°C / 14°C	12days (92 mm) Wet	13h Excellent	72% Muggy	5 Moderate	Excellent	View Details
August best	19°C / 14°C	18°C / 13°C	13days (91 mm) Wet	10.7h Excellent	77% Humid	4.3 Moderate	Excellent	View Details
September best	16°C / 12°C	15°C / 10°C	12days (94 mm) Wet	7.7h Good	79% Humid	3.1 Moderate	Good	View Details
October	11°C / 7°C	8°C / 3°C	13days (93 mm) Wet	4.9h Fair	83% Humid	1.5 Low	Poor	View Details
November	6°C / 3°C	2°C / -1°C	12days (78 mm) Wet	2.5h Poor	85% Humid	0.6 Low	Poor	View Details
December	3°C / -1°C	-1°C / -5°C	13days (70 mm) Wet	1.7h Poor	87% Very Muggy	0.3 Low	Poor	View Details

What to Wear

Dress in layers — a mix of long sleeves, light sweaters, and a versatile jacket works best for changeable conditions.

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

Packing List

UmbrellaWaterproof jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is August a good time to visit Fredrikstad?

August is typically excellent for visiting Fredrikstad, with average highs of 19°C (67°F) and around 13 rainy days. Fredrikstad, Norway in August has mild conditions, with highs averaging 19.4°C (67°F) and noticeably cooler mornings. Ra

Does it rain a lot in Fredrikstad in August?

Fredrikstad typically sees around 13 rainy days in August with 91 mm (3.6 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Fredrikstad in August?

Evenings in Fredrikstad during August are mild at 14°C (57°F). A light cardigan is usually enough.

What should I pack for Fredrikstad in August?

With highs of 19°C (67°F) and lows of 14°C (57°F) in August, we recommend: Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is August among the best months weather-wise in Fredrikstad?

Yes, August offers some of the best weather conditions in Fredrikstad with comfortable temperatures and lower chances of rain.

What is the UV index in Fredrikstad in August?

The average UV index in Fredrikstad during August is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Fredrikstad in August?

Fredrikstad gets approximately 15 hours of daylight per day in August, with around 11 hours of sunshine.

Does it snow in Fredrikstad in August?

Snow is uncommon in Fredrikstad during August based on 10-year climate averages.

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