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Korsør weather & best time to visit

Sun, sea & sand

Korsør at a glance

Best time
Jul – Aug
Warmest month
Jul · 22°
Warmest sea
Aug · 18.2°
Sunshine a year
1,920 h
Rain a year
701 mm
Climate
Maritime
Time zone
UTC+1 / UTC+2
Elevation
2 m

Climate in Korsør

Korsør has a maritime climate with moderate summers and cool, often grey winters. July is the warmest month with average highs of 22 °C, while January is the coolest at 4 °C. With around 1,920 hours of sunshine a year, Korsør is moderately sunny; June is the sunniest month with 9.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Korsør

The best time to visit Korsør is from July to August. The sea stays too cool for a classic beach holiday: even in August it only reaches 18.2 °C. For sightseeing, day trips and hiking, conditions are most comfortable from May to June and from August to September. Rain is frequent from October to January; the wettest month is July with 75 mm.

Korsør through the seasons

How the weather changes over the seasons, with averages for each.

Korsør in spring

Mar – May

25

Poor

  • 7–16 °C by day
  • Sea 7 °C
  • 6.9 h of sun a day
  • 29 rainy days in all

Korsør in summer

Jun – Aug

40

Fair

  • 19–22 °C by day
  • Sea 17 °C
  • 8.5 h of sun a day
  • 35 rainy days in all

Korsør in autumn

Sep – Nov

13

Poor

  • 8–18 °C by day
  • Sea 12 °C
  • 3.8 h of sun a day
  • 36 rainy days in all

Korsør in winter

Dec – Feb

9

Poor

  • 4–5 °C by day
  • Sea 4 °C
  • 1.7 h of sun a day
  • 35 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

May – Jun, Aug – Sep

15–28 °C and not too much rain

Rainy months

Oct – Jan

Rainy season or more than 12 rainy days

Snow

Jan – Feb

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Korsør for you.

Swimming in the sea
Sunshine
Little rain

Your best months: July – August

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

9

Holiday weather in October

Poor

Best time to visit: July – August

Keep in mindFrequent rain

A typical day in October

  1. Morning, 08:00: about 9°
  2. Midday, 13:00: about 13°
  3. Afternoon, 16:00: about 13°
  4. Evening, 20:00: about 11°
  5. Night, 23:00: about 10°

07:4318:19

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 07:21–08:34 · evening 17:28–18:42
Blue hour
Morning 07:06–07:21 · evening 18:42–18:56

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Korsør compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 15° at the start of the month to 11° at the end. The sea cools from 14° to 10°. The days get 2.2 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high15°11°
Night-time low10°7°
Sea14°10°
Daylight11.6 h9.5 h

What is the weather like in Korsør in October?

In October, Korsør is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 12.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 13 rainy days and 73 mm in total. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is not an ideal month for a holiday in Korsør.

More details for October

Daylight
10 h 36 min07:43 – 18:19
UV index
1 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
29 km/haverage daily peakAll months
Cloud cover
70 %on averageAll months
Hot days
0 days30 °C or more
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %12 %
  • Few rainy daysweight 20 %35 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.

What to pack in October

  • A jumper for the evenings
  • Rain jacket or umbrella
  • Windproof jacket

Compare two months in Korsør

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Korsør: score 46 against 9. In July, days are 9 °C warmer than in October. The sea is 5 °C warmer in July. July has one rainy day fewer. The sun shines 5 hours longer a day in July.

October vs July, Korsør
MonthOctoberJuly
Holiday weather score946better
Daytime high13°22°
Night-time low8°14°
Sea12.2°17.6°
Sunshine3.7 h9.0 hbetter
Rainy days1312better
Rainfall73 mm75 mm
Muggy days0better1

Based on the climate averages 1996–2025.

Korsør month by month

The typical weather for every month at a glance.

8January4° · Sea 3° · 1.6 h

In January, Korsør is cold: daytime highs average 4 °C, and nights cool down to about 1 °C. The sea averages 3.1 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. Rain is frequent, with about 12 rainy days and 58 mm in total. Snow falls on about 3 days. It is often windy: on a typical day the wind peaks at around 31 km/h. All in all, January is not an ideal month for a holiday in Korsør.

Korsør in January
11February4° · Sea 3° · 2.4 h

In February, Korsør is cold: daytime highs average 4 °C, and nights cool down to about 0 °C. The sea averages 2.5 °C – swimming is only for the hardy. The sun is scarce, with only about 2.4 hours a day. Rain is frequent, with about 10 rainy days and 48 mm in total. Snow falls on about 2 days. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, February is not an ideal month for a holiday in Korsør.

Korsør in February
17March7° · Sea 4° · 4.6 h

In March, Korsør is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sea averages 3.5 °C – swimming is only for the hardy. Expect around 4.6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 43 mm in total. Snow falls on about 2 days. All in all, March is not an ideal month for a holiday in Korsør.

Korsør in March
27April11° · Sea 6° · 7.3 h

In April, Korsør is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 6.0 °C – swimming is only for the hardy. The sun shines for around 7.3 hours a day. Rain is frequent, with about 9 rainy days and 38 mm in total. All in all, April is not an ideal month for a holiday in Korsør.

Korsør in April
30May16° · Sea 11° · 8.9 h

In May, Korsør is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 11.1 °C – swimming is only for the hardy. The sun shines for around 8.9 hours a day. Rain is frequent, with about 11 rainy days and 55 mm in total. All in all, May is not an ideal month for a holiday in Korsør.

Korsør in May
31June19° · Sea 15° · 9.0 h

In June, Korsør is mild: daytime highs average 19 °C, and nights cool down to about 12 °C. The sea averages 15.1 °C – swimming is only for the hardy. With around 9.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 11 rainy days and 65 mm in total. All in all, June is not an ideal month for a holiday in Korsør.

Korsør in June
46July22° · Sea 18° · 9.0 h

In July, Korsør is warm: daytime highs average 22 °C, and nights cool down to about 14 °C. The sea averages 17.6 °C – bracing, so a wetsuit helps for longer swims. With around 9.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 12 rainy days and 75 mm in total. All in all, July is a so-so month for a holiday in Korsør – and yet one of the best months here.

Korsør in July
44August22° · Sea 18° · 7.6 h

In August, Korsør is warm: daytime highs average 22 °C, and nights cool down to about 15 °C. The sea averages 18.2 °C – bracing, so a wetsuit helps for longer swims. The sun shines for around 7.6 hours a day. Rain is frequent, with about 12 rainy days and 71 mm in total. All in all, August is a so-so month for a holiday in Korsør – and yet one of the best months here.

Korsør in August
21September18° · Sea 16° · 5.9 h

In September, Korsør is mild: daytime highs average 18 °C, and nights cool down to about 12 °C. The sea averages 15.9 °C – swimming is only for the hardy. Expect around 5.9 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 57 mm in total. All in all, September is not an ideal month for a holiday in Korsør.

Korsør in September
9October13° · Sea 12° · 3.7 h

In October, Korsør is cool: daytime highs average 13 °C, and nights cool down to about 8 °C. The sea averages 12.2 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Rain is frequent, with about 13 rainy days and 73 mm in total. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, October is not an ideal month for a holiday in Korsør.

Korsør in October
8November8° · Sea 9° · 1.8 h

In November, Korsør is cold: daytime highs average 8 °C, and nights cool down to about 5 °C. The sea averages 8.7 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. Rain is frequent, with about 13 rainy days and 58 mm in total. It is often windy: on a typical day the wind peaks at around 29 km/h. All in all, November is not an ideal month for a holiday in Korsør.

Korsør in November
8December5° · Sea 5° · 1.2 h

In December, Korsør is cold: daytime highs average 5 °C, and nights cool down to about 2 °C. The sea averages 4.9 °C – swimming is only for the hardy. The sun is scarce, with only about 1.2 hours a day. Rain is frequent, with about 13 rainy days and 60 mm in total. Snow falls on about 2 days. It is often windy: on a typical day the wind peaks at around 30 km/h. All in all, December is not an ideal month for a holiday in Korsør.

Korsør in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Korsør

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Cold 0–8°
  • Cool 8–15°
  • Pleasant 15–20°

CoolOctober: nights around 8°. A duvet at night and a jumper for the evening.

The coolest nights are in February (0°), the warmest in August (15°). Nights are pleasant for sleeping (15 to 20 °C) in August. Nights fall below 8 °C on average from November to April, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 13°Night 8°Sea 12°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan84°1°3.1°1.6 h1258
FebruaryFeb114°0°2.5°2.4 h1048
MarchMar177°2°3.5°4.6 h1043
AprilApr2711°5°6.0°7.3 h938
MayMay3016°9°11.1°8.9 h1155
JuneJun3119°12°15.1°9.0 h1165
JulyJul4622°14°17.6°9.0 h1275
AugustAug4422°15°18.2°7.6 h1271
SeptemberSep2118°12°15.9°5.9 h1057
OctoberOct913°8°12.2°3.7 h1373
NovemberNov88°5°8.7°1.8 h1358
DecemberDec85°2°4.9°1.2 h1360

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

55.33° N, 11.14° E · 2 m · Europe/Copenhagen

Swimming calendar

Sea temperature in Korsør

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October12.2°Ccold

8 in 10 years: 11.1 – 13.3 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 12.2°8 in 10 years 11.1° – 13.3°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Korsør ranges from 2.5 °C in February to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea warms up slowly: it is warmest in August, while the air already peaks in July. In November the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 17.2 and 19.6 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan3.1°0.9°4.8°cold
FebruaryFeb2.5°1.1°4.1°cold
MarchMar3.5°1.8°5.0°cold
AprilApr6.0°3.6°7.6°cold
MayMay11.1°9.7°12.5°cold
JuneJun15.1°13.8°16.4°cold
JulyJul17.6°15.9°19.7°fresh
AugustAug18.2°17.2°19.6°fresh
SeptemberSep15.9°14.8°17.0°cold
OctoberOct12.2°11.1°13.3°cold
NovemberNov8.7°7.4°10.1°cold
DecemberDec4.9°2.2°6.4°cold
Sunshine

Sunshine hours in Korsør

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
1,920 hours
Sunniest month
Jun · 9.0 h a day
Least sunshine
Dec · 1.2 h a day
OctoberSunshine 3.7 hDaylight 10.6 hShare of daylight 35 %
SunshineDaylight

In October, the sun shines for about 3.7 of 10.6 hours of daylight in Korsør, 35 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Korsør: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
701 mm on 135 days
Wettest month
Jul · 75 mm
Driest month
Apr · 38 mm
OctoberRainy days 13Rainfall 73 mm

In October, Korsør has about 13 rainy days with 73 mm of rain in total.

Sun protection

UV index in Korsør

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
1 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 7).

Minutes until sunburn in October

Very fair skin
about 95 min
Fair skin
about 120 min
Light brown skin
over 2 h
Olive skin
over 2 h

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Korsør

How breezy and how cloudy Korsør is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
27 km/h · moderate breeze
Windiest month
Jan · 31 km/h
Calmest month
Jul · 24 km/h
OctoberWind 29 km/hBeaufort 5
20
WindBeaufort 4

In October, the wind in Korsør typically peaks at 29 km/h during the day: Beaufort 5, fresh breeze.

Breezy months for windsurfing and kiting

From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting, and here it is that strong all year.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
66 % · mostly cloudy
Clearest month
Apr · 57 %
Cloudiest month
Dec · 79 %
OctoberCloud cover 70 %Sunshine 3.7 h

In October, cloud covers on average 70 % of the sky over Korsør: mostly cloudy, with about 3.7 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Snow

Snow in Korsør

Snow is possible in Korsør, but no month makes it likely: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
10 days
Fresh snow a year
30 cm
Snow possible
Dec – Mar

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 0 cmChance of snow 0 / 100

In October, it hardly ever snows in Korsør.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Korsør

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Korsør in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Korsør has its best school-holiday weather during the summer holidays (score 45) and its weakest during the Christmas holidays (score 8).

  • Easter holidays

    Mar – Apr

    24

    Poor

    • 10 °C by day
    • Sea 5 °C
    • 6.5 h of sun a day
    • 9 rainy days a month
  • May half-term

    May – Jun

    30

    Poor

    • 16 °C by day
    • Sea 12 °C
    • 8.9 h of sun a day
    • 11 rainy days a month

    Good for: Sightseeing & walks

  • Summer holidays

    Jul – Aug

    45

    FairBest holidays

    • 22 °C by day
    • Sea 18 °C
    • 8.1 h of sun a day
    • 12 rainy days a month
  • October half-term

    Oct

    9

    Poor

    • 13 °C by day
    • Sea 12 °C
    • 3.7 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • Christmas holidays

    Dec – Jan

    8

    Poor

    • 5 °C by day
    • Sea 4 °C
    • 1.4 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain, Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 1 h 35 min
Distance
880 km
Time zone
UTC+2
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Korsør compared

Put Korsør side by side with another destination.

Nearby:
Compare with home:

Korsør vs Slagelse

In October the holiday weather in Korsør and Slagelse is about equally good (score 9 vs 12). During the day it is about as warm in Slagelse as in Korsør.

Korsør vs Slagelse, in October
in OctoberKorsørSlagelse
Holiday weather score912
Daytime high13°13°
Sea12°no sea nearby
Sunshine4 h4 h
Rainy days1312
Best timeJul – AugMay – Sep

Through the year

OctoberKorsør 13°Slagelse 13°
KorsørSlagelse
Go to Slagelse
Ranking

Denmark in October: the best places

In October, Korsør ranks 19 among the 31 nearest destinations in this country.

  1. Odense13°12°41
  2. 2Ringsted13°40
  3. 3Slagelse13°38
  4. 4Aarhus13°12°38
  5. 5Haderslev13°36
  6. 6Copenhagen12°12°34
  7. 7Hillerød13°34
  8. 8Nyborg13°12°12
  9. 19KorsørThis page13°12°9
All destinations: Denmark

Near Korsør

Other destinations close by.

Places with a climate like Korsør

Destinations whose weather through the year is closest to Korsør's – good alternatives.

  1. 89 % similar8AalborgDenmark13°12°Best time: Jul – Aug
  2. 88 % similar11WismarGermany13°13°Best time: Jul – Aug
  3. 88 % similar9Binz, RügenGermany13°13°Best time: Jul – Aug
  4. 88 % similar11YstadSweden12°12°Best time: Jul – Aug

Frequently asked questions about Korsør

When is the best time to visit Korsør?

The best time to visit Korsør is from July to August. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Korsør?

The sea temperature in Korsør ranges from 2.5 °C in February to 18.2 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Korsør in October?

Only if you don't mind cold water: in October the sea averages just 12.2 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Korsør?

July is the warmest month, with average highs of 22 °C and nights around 14 °C. January is the coolest month at 4 °C.

When does it rain most in Korsør?

Rain is frequent from October to January; the wettest month is July with 75 mm. The driest month is April with 38 mm.

How many hours of sunshine does Korsør get?

Korsør gets around 1,920 hours of sunshine a year. The sunniest month is June with 9.0 hours a day; in December there are 1.2 hours a day.

What time zone is Korsør in?

Korsør is on UTC+1 in January and UTC+2 in July.

How long is the flight from London to Korsør?

A nonstop flight from London to Korsør takes about 1 h 35 min, for a straight-line distance of about 880 km.

Which school holidays are best for Korsør?

Korsør has its best school-holiday weather during the summer holidays (score 45) and its weakest during the Christmas holidays (score 8). Holiday ratings (0–100): Easter holidays 24, May half-term 30, summer holidays 45, October half-term 9, Christmas holidays 8.