Climate and monthly weather forecast
Fredrikstad, Norway


The climate of Fredrikstad

Fredrikstad, situated in Norway, is predominantly under the influence of a Marine West Coast, Warm Summer climate, according to the Köppen climate classification, denoted as Cfb. This climate type is characterized by moderate temperature variations and a significant amount of precipitation spread evenly throughout the year. These climatic conditions, brought on by Fredrikstad’s geographical position near the ocean, provide a mix of mild summers and chilly winters with snowfall.

Throughout the year, Fredrikstad experiences temperatures ranging from a chilly low of -7°C in the colder months of January and February to a warm high of 21°C in July. The city endures varying daylight hours throughout the year, from a low of 6.3 hours in December to a peak of 18.5 hours in the summer month of June. Sea temperatures as well fluctuate from an icy 2.8°C in March to a pleasant 18.4°C in August.

The weather parameter that sees the most significant variation is rainfall. Total monthly rainfall volumes range from 42mm in the dryer months of February and April, to a peak of 104mm in October. Consequently, the number of rainfall days in a month also ranges widely, from 12 days in April to 18 days in November. Also worth noting is the considerable variation in sunshine hours, from the low of 1 hour per day in January and December, up to 9 hours per day in June.

A unique weather pattern to highlight is the significantly longer days during the summer months, with maximum daylight hours recorded from May to July, providing ample time to explore the city and its surroundings.

The best time to visit Fredrikstad

Owing to its climate classification, the best time to visit Fredrikstad is between June and August when the temperature ranges between 20°C and 21°C during the day and from 10°C to 12°C at night. This period witnesses the longest daylight hours, ranging from 17.7 hours in July to 18.5 hours in June. It is also the sunniest time of the year with an average daily sunshine duration of between 7 hours in August and 9 hours in June.

The worst time to visit Fredrikstad

The months of January and February might be less desirable for travel. During these months, the city experiences its coldest temperatures, with highs of 0°C and lows dipping down to -7°C. The limited daylight, which is approximately 7.1 hours in January and 9.3 hours in February, combined with lower sunshine duration at 1 hour and 2 hours respectively, makes outdoor activities less enjoyable.

Spring weather in Fredrikstad

Springtime in Fredrikstad, taking place from March to May, brings a change from the cold winter months. March begins with typically colder conditions, with average low temperatures at -4°C, but as the season progresses, by May the temperatures ascend to a high of 15°C and a low of 5°C. This season sees a progressive increase in daylight hours from 11.9 in March, to 14.5 in April, and finally to an encouraging 17 hours in May. Rainfall remains consistent across the season, ranging between 42mm in April to 56mm in May.

Summer weather in Fredrikstad

Enjoying its warmest and sunniest months from June to August, Fredrikstad experiences an average high temperature between 20°C to 21°C and low of 10°C to 12°C. The daylight hours hit their peak during this season, providing between 17.7 and 18.5 hours of light. Sea temperature also increases, reaching up to 18.4°C in August, allowing for pleasant beach activities.

Autumn weather in Fredrikstad

Autumn, spanning from September to November, sees temperatures dropping steadily from a high of 15°C and a low of 8°C in September, to a significantly chillier high of 4°C and low of -1°C by November. The rainfall sees an uptick during these months, reaching a peak in October at 104mm, making it the wettest month of the year. The day's length reduces from 12.8 hours in September to 7.7 hours in November.

Winter weather in Fredrikstad

Winters in Fredrikstad are relatively cold. From December to February, the city experiences average high temperatures from 2°C to 0°C and low temperatures from -5°C to -7°C. Accompanying these colder temperatures is the low amount of daylight, with hours ranging from 7.1 in December to 9.3 in February. Contrary to the cold land temperatures, the sea experiences a modest climb in temperature, from 6.1°C in December to 4°C in February. Rainfall during this season is moderate compared with other months, with volumes between 54mm and 61mm.

Weather in January

January in Fredrikstad, Norway exhibits the chill of true winter. The short, cold days are often spent indoors with limited sunshine and daylight hours. The sea temperature is frigid as well with only 4°C. Sharp contrasts to the warmer months become evident as rainfall occurs over half the month. Weather in January »

Weather in February

February weather conditions indicate a continuation of hard winter, with the cold extending across land and sea alike. This month follows the trend of January, maintaining subzero temperatures and short days. It distinguishes itself by receiving the lowest rainfall of any winter month, at 42mm over 13 days. Weather in February »

Weather in March

Transitioning into March, Fredrikstad catches the first hints of spring. The severity of winter begins to ease with temperatures slightly rising. Rainfall follows a similar trend, with 52mm occurring over 14 days. The daylight hours noticeably lengthen, providing a reminder of the approaching warm months. Weather in March »

Weather in April

April commences a discernible change in Fredrikstad, indicating the arrival of spring. Snowfall recedes as temperatures frequently stay above freezing. Despite the relative cold, the sea warms up to 6.4°C, a significant jump from the colder months. Weather in April »

Weather in May

May brings a considerable warming trend to Fredrikstad, as temperatures often reach 15°C. The sea temperature shows a similar increase as it reaches 11.1°C. An increase in daylight hours enriches life, making it a vibrant month. This month marks the transition from spring to summer, taking the city into a whole new phase of the year. Weather in May »

Weather in June

June marks the transition into summer, and with it, the warmest sea temperature of 15.3°C. A robust 18.5 hours of daylight characterize this month, as the days become at their longest. The nature of weather changes as higher average temperatures become more common. Weather in June »

Weather in July

To no surprise, July stands as the most heated month in Fredrikstad with temperatures often reaching 21°C. Sea temperatures peak alongside, indicating the highpoint of summer. The hot weather gives locals and visitors ample opportunities to enjoy the sun and the sea. Weather in July »

Weather in August

The hot summer season continues into August, albeit with some decline in temperatures. The sea temperature remains warm despite the peak having passed in July. With daylight hours beginning to recede from their summer maximum, signs of the impending fall start to emerge. Weather in August »

Weather in September

The fall season announces its presence in September, registering a definitive dip in temperatures. The sea,however, maintains its warmth at 15.8 degrees for late-season swimmers. Daylight begins to noticeably shorten, giving way to longer evenings. Weather in September »

Weather in October

In October, Fredrikstad starts to feel the chill of the oncoming winter. The biggest contrast to summer becomes evident with the sea temperature decreasing to 12°C. The daylight hours continue to shorten, signaling the proximity of winter. Weather in October »

Weather in November

November accentuates the transition towards winter with temperatures frequently falling to -1°C. The sea gets colder, and daylight keeps on shortening. There's considerable change in the overall climate as the city prepares for the cold season. Weather in November »

Weather in December

December confirms the full swing of winter in Fredrikstad. The sea temperature drops to a chilling 6.1°C, marking the advent of colder times. Daylight becomes scarce, reducing the outdoor activities. The festive spirit adds warmth to the cold month despite the low temperatures. Weather in December »


What month is the coldest in Fredrikstad?

January and February bring Fredrikstad's average lowest temperatures, reaching a high of 0°C.

How much does it rain in Fredrikstad?

In Fredrikstad, Norway, during the entire year, the rain falls for 179 days and collects up to 808mm of precipitation.

What are the months with the least sunshine in Fredrikstad?

The months with the least sunshine in Fredrikstad, Norway, are January and December, with an average of 1h of sunshine.

When is the lowest UV index in Fredrikstad?

The months with the lowest UV index in Fredrikstad, Norway, are January, November and December, with an average maximum UV index of 0.

What is the driest month in Fredrikstad?

The months with the least rainfall in Fredrikstad are February and April Rain falls for 13 days and accumulates 42mm of rain.

When is the sea coldest in Fredrikstad?

With an average sea temperature of 2.8°C, March is the month with the coldest seawater in Fredrikstad.

When is Daylight Saving Time (DST) in Fredrikstad?

On Sunday, 26. March 2023, at 02:00, Daylight Saving Time starts in Fredrikstad, and the time zone changes from CET to CEST. Daylight Saving Time ends on Sunday, 29. October 2023, at 03:00, and the time zone reverts from CEST to CET.

When are the longest days in Fredrikstad?

June has the longest days of the year, with an average of 18h and 24min of daylight.

What month has the most sunshine in Fredrikstad?

The month with the most sunshine is June, with an average of 9h of sunshine.

What are the months with the highest UV index in Fredrikstad?

June and July, with an average maximum UV index of 5, are months with the highest UV index in Fredrikstad.

What time of the year is the hottest in Fredrikstad?

The warmest temperatures in Fredrikstad occur during July, when averages reach a peak of 21°C and a low of 12°C.

What is the month with the warmest sea water in Fredrikstad?

The month with the warmest seawater in Fredrikstad, Norway, is August, with an average sea temperature of 18.4°C.

What is the wettest month in Fredrikstad?

The month with the most rainfall in Fredrikstad is October, when the rain falls for 17 days and typically aggregates up to 104mm of precipitation.

What is the month with the shortest days in Fredrikstad?

With an average of 6h and 18min of daylight, December has the shortest days of the year.

Average rainfall
Fredrikstad, Norway

Average rainfall - Fredrikstad, Norway

The wettest month (with the highest rainfall) is October (104mm).
The driest months (with the least rainfall) are February and April (42mm).


Average rainfall days
Fredrikstad, Norway

Average rainfall days - Fredrikstad, Norway

The month with the highest number of rainy days is November (18 days).
The month with the least rainy days is April (12 days).


Average sea temperature
Fredrikstad, Norway

Average sea temperature - Fredrikstad, Norway

The best month for swimming (with the highest average sea temperature) is August (18.4°C).
The coldest month (with the lowest average sea temperature) is March (2.8°C).


Average daylight / Average sunshine
Fredrikstad, Norway

Average daylight / Average sunshine - Fredrikstad, Norway

The month with the longest days is June (Average daylight: 18h and 24min).
The month with the shortest days is December (Average daylight: 6h and 18min).

The month with the most sunshine is June (Average sunshine: 9h).
The months with the least sunshine are January and December (Average sunshine: 1h).


Average UV index
Fredrikstad, Norway

Average UV index - Fredrikstad, Norway

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 0).


Fredrikstad, Norway

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