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Russia · 1991–2020

Best time to visit
Korsakov.

August leads for comfortable weather in Korsakov: typically 22.4°C by day, 13.6°C at night, with 107 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high22.4°C

Typical low13.6°C

Rain in August107 mm

Comfort

August

August · July · September

77climate match

Beach

August

August · July · June

40climate match

Outdoors

June

June · July · September

78climate match

The weakest month is January, scoring 5 against August’s 77 — days reach only -5.9°C, 30° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

5-5.9° / -16.5°

Feb

5-4.8° / -17.2°

Mar

50.2° / -10.5°

Apr

57° / -2.5°

May

3513.8° / 2.8°

Jun

5817.8° / 7.7°

Jul

7321.1° / 12.3°

Aug

7722.4° / 13.6°

Sep

5919.4° / 8.8°

Oct

2212.5° / 1.8°

Nov

53.5° / -5.2°

Dec

5-3.6° / -13.2°

Monthly climate evidence for Korsakov — daylight is calculated from latitude, everything else is measured, sea temperature from the nearest open water 7 km away
Month	Day	Night	Rain	Wet days	Sea	Daylight	Comfort	Coverage
January	-5.9°C	-16.5°C	56 mm	9.2	0.6°C	8 h 56	5	Strong coverage
February	-4.8°C	-17.2°C	38 mm	7.9	-0.4°C	10 h 14	5	Strong coverage
March	0.2°C	-10.5°C	52 mm	9	-0.2°C	11 h 45	5	Strong coverage
April	7°C	-2.5°C	57 mm	7.5	1.4°C	13 h 30	5	Strong coverage
May	13.8°C	2.8°C	66 mm	8.5	5.1°C	14 h 59	35	Strong coverage
June	17.8°C	7.7°C	64 mm	8.2	9.3°C	15 h 49	58	Strong coverage
July	21.1°C	12.3°C	92 mm	8.4	13.9°C	15 h 29	73	Strong coverage
August	22.4°C	13.6°C	107 mm	8.9	16.8°C	14 h 12	77	Strong coverage
September	19.4°C	8.8°C	101 mm	9.3	15.7°C	12 h 29	59	Strong coverage
October	12.5°C	1.8°C	101 mm	11.1	11.3°C	10 h 48	22	Strong coverage
November	3.5°C	-5.2°C	74 mm	11	6.6°C	9 h 19	5	Strong coverage
December	-3.6°C	-13.2°C	71 mm	11.8	3.3°C	8 h 35	5	Strong coverage

What has changed

Korsakov runs +1.2°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+2.2

Feb

+2.2

Mar

+1.8

Apr

+0.9

May

+1.2

Jun

-0.1

Jul

+1.5

Aug

+0.9

Sep

+1.2

Oct

+0.4

Nov

+1.0

Dec

+0.6

August daytime highs, 2011–2022. Last recorded: 23.2°C.

Records at JUZHNO-SAHALINSK, 1947–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	4.3°C20 Jan 2010	-36.2°C12 Jan 1961	42 mm29 Jan 1993	114 mm2024 · driest 6 mm in 1981	79
February	7.1°C13 Feb 2016	-34.8°C7 Feb 2001	50 mm1 Feb 1970	134 mm1970 · driest 1 mm in 2000	79
March	13.0°C15 Mar 2021	-30.5°C6 Mar 1970	42 mm3 Mar 1947	118 mm1970 · driest 7 mm in 1992	79
April	22.9°C30 Apr 2009	-25.2°C5 Apr 1950	70 mm21 Apr 1967	136 mm1967 · driest 2 mm in 1949	79
May	29.6°C21 May 2016	-6.2°C3 May 1989	53 mm25 May 1986	134 mm1999 · driest 12 mm in 1951	79
June	30.8°C26 Jun 2010	-2.1°C7 Jun 1954	77 mm23 Jun 2009	176 mm2009 · driest 0 mm in 1998	79
July	34.4°C17 Jul 1955	-0.4°C1 Jul 2022	88 mm29 Jul 2010	229 mm2010 · driest 11 mm in 2021	79
August	34.7°C9 Aug 1999	2.4°C28 Aug 1985	131 mm23 Aug 2001	323 mm2023 · driest 10 mm in 1977	79
September	29.0°C1 Sep 1994	-4.2°C30 Sep 2001	107 mm16 Sep 1947	263 mm1947 · driest 31 mm in 2015	78
October	23.5°C3 Oct 1948	-11.8°C25 Oct 1950	70 mm9 Oct 2015	217 mm1997 · driest 22 mm in 1986	78
November	18.1°C1 Nov 1990	-25.7°C30 Nov 1951	82 mm25 Nov 1988	164 mm2023 · driest 13 mm in 1958	78
December	9.0°C10 Dec 2021	-33.5°C27 Dec 1952	44 mm13 Dec 2017	149 mm2012 · driest 13 mm in 2016	78

Typical days per month at JUZHNO-SAHALINSK, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	30	1
February	0	0	28	<1
March	0	0	30	1
April	0	0	24	2
May	<1	0	6	2
June	2	<1	<1	2
July	6	<1	0	3
August	8	<1	0	3
September	2	0	<1	3
October	0	0	11	3
November	0	0	25	2
December	0	0	29	2

How often, not how much — every day in JUZHNO-SAHALINSK’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	0%	28%	4%	33%	-10.4–-4.6°C
February	0%	25%	3%	26%	-8.5–-3.4°C
March	0%	26%	4%	31%	-2.2–2.0°C
April	<1%	26%	6%	30%	4.9–9.0°C
May	11%	27%	7%	29%	11.7–16.1°C
June	30%	26%	6%	30%	15.7–19.8°C
July	49%	27%	9%	33%	19.0–23.7°C
August	56%	29%	10%	34%	19.6–24.4°C
September	33%	33%	11%	43%	17.5–20.6°C
October	3%	33%	10%	42%	10.8–13.7°C
November	0%	34%	7%	46%	1.0–5.5°C
December	0%	35%	5%	44%	-5.9–-1.7°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1947Each stripe is one year’s mean temperature against the 66-year average. Warmest: 1990. Coolest: 1969.2018

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 2124286
NOAA station: RSM00032150 · JUZHNO-SAHALINSK
Station distance: 35.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 46.63°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Sea temperature: NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 7 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from JUZHNO-SAHALINSK is what differs

Yuzhno-Sakhalinsk→Dolinsk→Aniva→Bykov→Sokol→Troitskoye→

Or put two places side by side: Korsakov vs Yuzhno-Sakhalinsk

Best time to visitKorsakov.

August

August

June

The whole year,without the guesswork.

Korsakov runs +1.2°Con the 1961–1990 baseline.

Nearby, measured,and named.

Best time to visit
Korsakov.

The whole year,
without the guesswork.

Korsakov runs +1.2°C
on the 1961–1990 baseline.

Nearby, measured,
and named.