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Korsakov weather & best time to visit

Sun, sea & sand

Korsakov at a glance

Best time
Aug
Warmest month
Aug · 21°
Warmest sea
Aug · 17.1°
Sunshine a year
1,940 h
Rain a year
803 mm
Climate
Continental
Time zone
UTC+11
Elevation
61 m

Climate in Korsakov

Korsakov has mild to warm summers and cold winters with occasional snow. August is the warmest month with average highs of 21 °C, while January is the coolest at −6 °C. With around 1,940 hours of sunshine a year, Korsakov is moderately sunny; May is the sunniest month with 6.7 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Korsakov

The best time to visit Korsakov is in August. The sea stays too cool for a classic beach holiday: even in August it only reaches 17.1 °C. For sightseeing, day trips and hiking, conditions are most comfortable from June to September. The wettest month is August with 119 mm of precipitation.

Korsakov through the seasons

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

Korsakov in spring

Mar – May

24

Poor

  • 0–12 °C by day
  • Sea 2 °C
  • 6.4 h of sun a day
  • 28 rainy days in all

Korsakov in summer

Jun – Aug

26

Poor

  • 16–21 °C by day
  • Sea 14 °C
  • 5.5 h of sun a day
  • 28 rainy days in all

Korsakov in autumn

Sep – Nov

18

Poor

  • 4–19 °C by day
  • Sea 12 °C
  • 5.0 h of sun a day
  • 30 rainy days in all

Korsakov in winter

Dec – Feb

21

Poor

  • −6–−3 °C by day
  • Sea 1 °C
  • 4.4 h of sun a day
  • 19 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

Jun – Sep

15–28 °C and not too much rain

Snow

Nov – Apr

Snow on 2 or more days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: February, 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

18

Holiday weather in October

Poor

Best time to visit: August

A typical day in October

  1. Morning, 08:00: about 4°
  2. Midday, 13:00: about 11°
  3. Afternoon, 16:00: about 12°
  4. Evening, 20:00: about 9°
  5. Night, 23:00: about 7°

07:4518:44

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 07:26–08:26 · evening 18:03–19:03
Blue hour
Morning 07:14–07:26 · evening 19:03–19:15

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 Korsakov 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 8° at the end. The sea cools from 14° to 9°. The days get 1.6 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high15°8°
Night-time low7°0°
Sea14°9°
Daylight11.8 h10.2 h

What is the weather like in Korsakov in October?

In October, Korsakov is cool: daytime highs average 12 °C, and nights cool down to about 4 °C. The sea averages 11.6 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 82 mm in total. All in all, October is not an ideal month for a holiday in Korsakov.

More details for October

Daylight
11 h 0 min07:45 – 18:44
UV index
3 · moderateclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
22 km/haverage daily peakAll months
Cloud cover
52 %on averageAll months
Hot days
0 days30 °C or moreAll months
Snow days
0 days1 cm or more of fresh snowAll months
Time zone
UTC+11offset from UTC

How the score comes together

  • Temperatureweight 35 %0 %
  • Seaweight 25 %0 %
  • Sunshineweight 20 %37 %
  • Few rainy daysweight 20 %55 %

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

Compare two months in Korsakov

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

vs

August has the better holiday weather in Korsakov: score 31 against 18. In August, days are 9 °C warmer than in October. The sea is 6 °C warmer in August. August has one more rainy day.

October vs August, Korsakov
MonthOctoberAugust
Holiday weather score1831better
Daytime high12°21°
Night-time low4°14°
Sea11.6°17.1°
Sunshine5.2 h5.3 h
Rainy days10better11
Rainfall82 mmbetter119 mm
Muggy days0better6

Based on the climate averages 1996–2025.

Korsakov month by month

The typical weather for every month at a glance.

20January−6° · Sea 1° · 4.2 h

In January, Korsakov is bitterly cold: daytime highs average −6 °C, and nights often drop below freezing (−14 °C). The sea averages 0.5 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Precipitation falls on about 7 days, totalling 45 mm; on about 6 of them it snows. All in all, January is not an ideal month for a holiday in Korsakov.

Korsakov in January
26February−5° · Sea −1° · 5.4 h

In February, Korsakov is bitterly cold: daytime highs average −5 °C, and nights often drop below freezing (−15 °C). The sea averages −0.6 °C – swimming is only for the hardy. Expect around 5.4 hours of sunshine a day. Precipitation falls on about 5 days, totalling 35 mm; on about 5 of them it snows. All in all, February is not an ideal month for a holiday in Korsakov.

Korsakov in February
23March0° · Sea 0° · 6.0 h

In March, Korsakov is bitterly cold: daytime highs average −1 °C, and nights often drop below freezing (−9 °C). The sea averages −0.3 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Precipitation falls on about 9 days, totalling 53 mm; on about 7 of them it snows. All in all, March is not an ideal month for a holiday in Korsakov.

Korsakov in March
24April6° · Sea 2° · 6.4 h

In April, Korsakov is cold: daytime highs average 6 °C, and nights often drop below freezing (−2 °C). The sea averages 1.5 °C – swimming is only for the hardy. Expect around 6.4 hours of sunshine a day. Rain is frequent, with about 9 rainy days and 60 mm in total. Snow falls on about 4 days. All in all, April is not an ideal month for a holiday in Korsakov.

Korsakov in April
24May12° · Sea 5° · 6.7 h

In May, Korsakov is cool: daytime highs average 12 °C, and nights cool down to about 3 °C. The sea averages 5.3 °C – swimming is only for the hardy. The sun shines for around 6.7 hours a day. Rain is frequent, with about 10 rainy days and 66 mm in total. All in all, May is not an ideal month for a holiday in Korsakov.

Korsakov in May
23June16° · Sea 10° · 6.1 h

In June, Korsakov is cool: daytime highs average 16 °C, and nights cool down to about 8 °C. The sea averages 9.6 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Rain falls on about 9 days, adding up to 59 mm. All in all, June is not an ideal month for a holiday in Korsakov.

Korsakov in June
23July20° · Sea 14° · 5.1 h

In July, Korsakov is mild: daytime highs average 20 °C, and nights cool down to about 13 °C. The sea averages 14.3 °C – swimming is only for the hardy. Expect around 5.1 hours of sunshine a day. Rain falls on about 9 days, adding up to 77 mm. All in all, July is not an ideal month for a holiday in Korsakov.

Korsakov in July
31August21° · Sea 17° · 5.3 h

In August, Korsakov is warm: daytime highs average 21 °C, and nights cool down to about 14 °C. The sea averages 17.1 °C – bracing, so a wetsuit helps for longer swims. Expect around 5.3 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 119 mm in total. All in all, August is not an ideal month for a holiday in Korsakov – and yet one of the best months here.

Korsakov in August
22September19° · Sea 16° · 6.2 h

In September, Korsakov is mild: daytime highs average 19 °C, and nights cool down to about 10 °C. The sea averages 16.1 °C – swimming is only for the hardy. Expect around 6.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 87 mm in total. All in all, September is not an ideal month for a holiday in Korsakov.

Korsakov in September
18October12° · Sea 12° · 5.2 h

In October, Korsakov is cool: daytime highs average 12 °C, and nights cool down to about 4 °C. The sea averages 11.6 °C – swimming is only for the hardy. Expect around 5.2 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 82 mm in total. All in all, October is not an ideal month for a holiday in Korsakov.

Korsakov in October
15November4° · Sea 7° · 3.7 h

In November, Korsakov is cold: daytime highs average 4 °C, and nights often drop below freezing (−4 °C). The sea averages 6.7 °C – swimming is only for the hardy. The sun is scarce, with only about 3.7 hours a day. Precipitation falls on about 9 days, totalling 70 mm; on about 4 of them it snows. All in all, November is not an ideal month for a holiday in Korsakov.

Korsakov in November
17December−3° · Sea 3° · 3.5 h

In December, Korsakov is bitterly cold: daytime highs average −3 °C, and nights often drop below freezing (−11 °C). The sea averages 3.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.5 hours a day. Precipitation falls on about 7 days, totalling 50 mm; on about 6 of them it snows. All in all, December is not an ideal month for a holiday in Korsakov.

Korsakov in December

Climate through the year

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

Best time to visit

Nights and sleep in Korsakov

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

  • Frost below 0°
  • Cold 0–8°
  • Cool 8–15°

ColdOctober: nights around 4°. The room should be heated.

The coolest nights are in February (−15°), the warmest in August (14°). Nights fall below 8 °C on average from October to May, so the room should be heated.

Temperatures through the year

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

OctoberDay 12°Night 4°Sea 12°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan20−6°−14°0.5°4.2 h745
FebruaryFeb26−5°−15°−0.6°5.4 h535
MarchMar23−1°−9°−0.3°6.0 h953
AprilApr246°−2°1.5°6.4 h960
MayMay2412°3°5.3°6.7 h1066
JuneJun2316°8°9.6°6.1 h959
JulyJul2320°13°14.3°5.1 h977
AugustAug3121°14°17.1°5.3 h11119
SeptemberSep2219°10°16.1°6.2 h1087
OctoberOct1812°4°11.6°5.2 h1082
NovemberNov154°−4°6.7°3.7 h970
DecemberDec17−3°−11°3.3°3.5 h750

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

46.63° N, 142.78° E · 61 m · Asia/Sakhalin

Swimming calendar

Sea temperature in Korsakov

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

Sea in October11.6°Ccold

8 in 10 years: 10.7 – 13.0 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 11.6°8 in 10 years 10.7° – 13.0°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Korsakov ranges from −0.6 °C in February to 17.1 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

From November to March 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 15.7 and 18.7 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan0.5°−0.1°1.1°cold
FebruaryFeb−0.6°−1.4°−0.1°cold
MarchMar−0.3°−1.2°0.2°cold
AprilApr1.5°0.4°2.7°cold
MayMay5.3°3.8°7.0°cold
JuneJun9.6°8.4°10.8°cold
JulyJul14.3°12.5°15.6°cold
AugustAug17.1°15.7°18.7°fresh
SeptemberSep16.1°15.0°17.0°cold
OctoberOct11.6°10.7°13.0°cold
NovemberNov6.7°5.9°7.5°cold
DecemberDec3.3°2.5°4.0°cold
Sunshine

Sunshine hours in Korsakov

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

Per year
1,940 hours
Sunniest month
May · 6.7 h a day
Least sunshine
Dec · 3.5 h a day
OctoberSunshine 5.2 hDaylight 11.0 hShare of daylight 47 %
SunshineDaylight

In October, the sun shines for about 5.2 of 11.0 hours of daylight in Korsakov, 47 % 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 Korsakov: 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
803 mm on 105 days
Wettest month
Aug · 119 mm
Driest month
Feb · 35 mm
OctoberRainy days 10Rainfall 82 mm

In October, Korsakov has about 10 rainy days with 82 mm of rain in total.

Sun protection

UV index in Korsakov

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

Clear-sky UV in October
3 · moderateAround midday seek shade; use sunscreen, a hat and sunglasses.

The sun is strongest in June (UV 8).

Minutes until sunburn in October

Very fair skin
about 50 min
Fair skin
about 60 min
Light brown skin
about 85 min
Olive skin
about 110 min

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 Korsakov

How breezy and how cloudy Korsakov 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
19 km/h · gentle breeze
Windiest month
Nov · 22 km/h
Calmest month
Jul · 16 km/h
OctoberWind 22 km/hBeaufort 4
20
WindBeaufort 4

In October, the wind in Korsakov typically peaks at 22 km/h during the day: Beaufort 4, moderate 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: Mar – Apr, Oct – Dec.

Clouds

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

Year average
65 % · mostly cloudy
Clearest month
Oct · 52 %
Cloudiest month
Jul · 81 %
OctoberCloud cover 52 %Sunshine 5.2 h

In October, cloud covers on average 52 % of the sky over Korsakov: variable cloud, with about 5.2 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.

Heat & humidity

Heat and humidity in Korsakov

How often the day gets hot in Korsakov (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.

Hot days a year
0 days
Hottest month
Aug · 21 °C
Hot months
none

Heat calendar

  • pleasant
  • some hot or muggy days
  • often muggy
  • often hot
  • hot and muggy
OctoberHot days (30 °C+) 0Daytime high 12 °C

In October, Korsakov has about 0 hot days, with an average daytime high of 12 °C: pleasant. Heat plays no part this month.

Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year

Snow

Snow in Korsakov

When Korsakov is likely to be white: 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
33 days
Fresh snow a year
178 cm
Snowy months
Dec – Apr

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 0Fresh snow 1 cmChance of snow 4 / 100

In October, it hardly ever snows in Korsakov.

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 Korsakov

Weather for your travel dates

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

Korsakov 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.

Korsakov has its best school-holiday weather during the summer holidays (score 28) and its weakest during October half-term (score 18).

  • Easter holidays

    Mar – Apr

    24

    Poor

    • 4 °C by day
    • Sea 1 °C
    • 6.3 h of sun a day
    • 9 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    24

    Poor

    • 12 °C by day
    • Sea 6 °C
    • 6.6 h of sun a day
    • 9 rainy days a month
  • Summer holidays

    Jul – Aug

    28

    PoorBest holidays

    • 21 °C by day
    • Sea 16 °C
    • 5.2 h of sun a day
    • 10 rainy days a month

    Good for: Sightseeing & walks

  • October half-term

    Oct

    18

    Poor

    • 12 °C by day
    • Sea 12 °C
    • 5.2 h of sun a day
    • 10 rainy days a month
  • Christmas holidays

    Dec – Jan

    19

    Poor

    • −5 °C by day
    • Sea 2 °C
    • 3.9 h of sun a day
    • 7 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 10 h 50 min
Distance
8,550 km
Time zone
UTC+11
Jet lag
About 10 days (10 h east)

Rule of thumb for flying east: for a few days before, go to bed and get up a little earlier, and get plenty of morning light at your destination.

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

Compare & alternatives

Compare

Korsakov compared

Put Korsakov side by side with another destination.

Nearby:
Compare with home:

Korsakov vs Yuzhno-Sakhalinsk

In October the holiday weather in Korsakov and Yuzhno-Sakhalinsk is about equally good (score 18 vs 18). During the day Yuzhno-Sakhalinsk is 1 °C warmer than Korsakov.

Korsakov vs Yuzhno-Sakhalinsk, in October
in OctoberKorsakovYuzhno-Sakhalinsk
Holiday weather score1818
Daytime high12°13°
Sea12°no sea nearby
Sunshine5 h5 h
Rainy days1010
Best timeAugJun – Sep

Through the year

OctoberKorsakov 12°Yuzhno-Sakhalinsk 13°
KorsakovYuzhno-Sakhalinsk
Go to Yuzhno-Sakhalinsk
Ranking

Russia in October: the best places

In October, Korsakov ranks 21 among the 31 nearest destinations in this country.

  1. Ussuriysk15°67
  2. 2Vladivostok14°14°67
  3. 3Yuzhno-Sakhalinsk13°48
  4. 4Khabarovsk11°44
  5. 5Kurilsk13°12°42
  6. 6Birobidzhan10°41
  7. 7Kyzyl9°39
  8. 8Blagoveshchensk9°38
  9. 21KorsakovThis page12°12°18
All destinations: Russia

Near Korsakov

Other destinations close by.

Places with a climate like Korsakov

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

  1. 70 % similar38Percé, GaspéCanada12°9°Best time: Jun – Sep
  2. 67 % similar34GaspéCanada11°8°Best time: Jun – Sep
  3. 65 % similar19NemuroJapan15°14°Best time: Feb – Mar, Aug
  4. 65 % similar26Baie-ComeauCanada10°7°Best time: Jun – Sep

Frequently asked questions about Korsakov

When is the best time to visit Korsakov?

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

How warm is the sea in Korsakov?

The sea temperature in Korsakov ranges from −0.6 °C in February to 17.1 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Korsakov in October?

Only if you don't mind cold water: in October the sea averages just 11.6 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Korsakov?

August is the warmest month, with average highs of 21 °C and nights around 14 °C. January is the coolest month at −6 °C.

When does it rain most in Korsakov?

The wettest month is August with 119 mm of precipitation. The driest month is February with 35 mm.

How many hours of sunshine does Korsakov get?

Korsakov gets around 1,940 hours of sunshine a year. The sunniest month is May with 6.7 hours a day; in December there are 3.5 hours a day.

What time zone is Korsakov in?

Korsakov is on UTC+11 all year.

How long is the flight from London to Korsakov?

A nonstop flight from London to Korsakov takes about 10 h 50 min, for a straight-line distance of about 8,550 km.

Which school holidays are best for Korsakov?

Korsakov has its best school-holiday weather during the summer holidays (score 28) and its weakest during October half-term (score 18). Holiday ratings (0–100): Easter holidays 24, May half-term 24, summer holidays 28, October half-term 18, Christmas holidays 19.