Korsakov weather in May

In May, Korsakov sees average daytime highs of 11°C and overnight lows near 4°C, with 65 mm of precipitation across 9.6 wet days and about 14.8 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 9°C in the first days to 13°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 18 min by month's end. Set against the rest of the year, May is Korsakov's 9th-clearest and 8th-windiest month. For the whole year in context, see Korsakov's year-round climate.

Daytime high: 11°; 6th warmest
Overnight low: 4°; 7th coldest
Precipitation: 65 mm; 9.6 wet days
Daylight: 14 h 48 min; 5:01 AM – 7:49 PM
Cloud cover: 69%; 9th clearest
Wind: 13 km/h; 8th windiest
Solar energy: 5.42 kWh/m²
Travel score: 2.8; out of 10

Korsakov is town in Sakhalin Oblast, Russia.

Density: 1,350/km²; people per km²
Founded: 1853

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← April Korsakov year-round climate June →Best places to visit in May

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 9°C in the first days to 13°C by the end.

A typical May day in Korsakov reaches about 11°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 17°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	9	9	9	9	10	10	10	10	10	10	10	11	11	11	11	11	11	12	12	12	12	12	12	12	13	13	13	13	13	13	13
Avg low (°C)	1	2	2	2	2	2	2	3	3	3	3	3	3	4	4	4	4	4	4	5	5	5	5	5	5	6	6	6	6	6	6

	Avg high (°C)	Avg low (°C)
1	9	1
2	9	2
3	9	2
4	9	2
5	10	2
6	10	2
7	10	2
8	10	3
9	10	3
10	10	3
11	10	3
12	11	3
13	11	3
14	11	4
15	11	4
16	11	4
17	11	4
18	12	4
19	12	4
20	12	5
21	12	5
22	12	5
23	12	5
24	12	5
25	13	5
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

How May really feels in Korsakov

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 12 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in May is cold — wind chill drags the overnight "feels like" below the raw low.

Korsakov weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-7° / -14°	41	6.1	7.4	8.8	0.0
Feb	-6° / -14°	32	5.3	6.7	10	0.0
Mar	-1° / -9°	53	7.8	8.2	11.6	0.0
Apr	6° / -2°	61	9.6	6.2	13.3	0.6
May	11° / 4°	65	9.6	1.4	14.8	2.8
Jun	15° / 9°	55	8.7	0	15.6	4.4
Jul	18° / 13°	79	9	0	15.3	5.7
Aug	20° / 15°	102	10.3	0	14	6.0
Sep	18° / 11°	96	10.8	0	12.4	5.5
Oct	12° / 4°	83	10.4	0.4	10.6	3.0
Nov	3° / -3°	63	9	4.8	9.2	0.2
Dec	-4° / -11°	53	7.4	7.9	8.4	0.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 65%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	36	36	35	35	35	35	35	34	34	34	34	35	35	35	35	35	35	35	34	34	34	35	34	34	34	35	35	35	35	34	33
Cloudier (%)	64	64	65	65	65	65	65	66	66	66	66	65	65	65	65	65	65	65	66	66	66	65	66	66	66	65	65	65	65	66	67

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	34	66
20	34	66
21	34	66
22	35	65
23	34	66
24	34	66
25	34	66
26	35	65
27	35	65
28	35	65
29	35	65
30	34	66
31	33	67

Chance of precipitation in May

Any precipitationSnow

Korsakov gets around 65 mm of rain and snow over 9.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 35% on the wettest days, and about 1 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	35	34	34	33	33	32	32	31	30	30	29	29	28	28	28	28	28	28	29	29	30	30	30	31	31	31	31	31	31	30	30
Snow chance (%)	12	11	11	10	10	9	8	8	7	7	6	5	5	4	4	3	3	3	2	2	2	1	1	1	1	0	0	0	0	0	0

	Rain chance (%)	Snow chance (%)
1	35	12
2	34	11
3	34	11
4	33	10
5	33	10
6	32	9
7	32	8
8	31	8
9	30	7
10	30	7
11	29	6
12	29	5
13	28	5
14	28	4
15	28	4
16	28	3
17	28	3
18	28	3
19	29	2
20	29	2
21	30	2
22	30	1
23	30	1
24	31	1
25	31	1
26	31	0
27	31	0
28	31	0
29	31	0
30	30	0
31	30	0

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	13	light breeze
2	13	light breeze
3	13	light breeze
4	13	light breeze
5	13	light breeze
6	13	light breeze
7	13	light breeze
8	13	light breeze
9	13	light breeze
10	13	light breeze
11	13	light breeze
12	13	light breeze
13	13	light breeze
14	13	light breeze
15	12	light breeze
16	12	light breeze
17	12	light breeze
18	12	light breeze
19	12	light breeze
20	12	light breeze
21	12	light breeze
22	12	light breeze
23	12	light breeze
24	12	light breeze
25	12	light breeze
26	12	light breeze
27	12	light breeze
28	12	light breeze
29	12	light breeze
30	12	light breeze
31	12	light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over May. Sunrise moves from 5:22 AM to 4:47 AM, and sunset from 7:30 PM to 8:06 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	14.1	14.2	14.2	14.3	14.3	14.4	14.4	14.5	14.5	14.5	14.6	14.6	14.7	14.7	14.8	14.8	14.8	14.9	14.9	15.0	15.0	15.0	15.1	15.1	15.1	15.2	15.2	15.2	15.3	15.3	15.3
Sunrise (AM)	5:22	5:21	5:19	5:18	5:16	5:15	5:13	5:12	5:10	5:09	5:07	5:06	5:05	5:03	5:02	5:01	5:00	4:59	4:57	4:56	4:55	4:54	4:53	4:52	4:51	4:50	4:50	4:49	4:48	4:47	4:47
Sunset (PM)	7:30	7:31	7:32	7:34	7:35	7:36	7:38	7:39	7:40	7:42	7:43	7:44	7:45	7:47	7:48	7:49	7:50	7:52	7:53	7:54	7:55	7:56	7:58	7:59	8:00	8:01	8:02	8:03	8:04	8:05	8:06

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.1	5:22	7:30
2	14.2	5:21	7:31
3	14.2	5:19	7:32
4	14.3	5:18	7:34
5	14.3	5:16	7:35
6	14.4	5:15	7:36
7	14.4	5:13	7:38
8	14.5	5:12	7:39
9	14.5	5:10	7:40
10	14.5	5:09	7:42
11	14.6	5:07	7:43
12	14.6	5:06	7:44
13	14.7	5:05	7:45
14	14.7	5:03	7:47
15	14.8	5:02	7:48
16	14.8	5:01	7:49
17	14.8	5:00	7:50
18	14.9	4:59	7:52
19	14.9	4:57	7:53
20	15.0	4:56	7:54
21	15.0	4:55	7:55
22	15.0	4:54	7:56
23	15.1	4:53	7:58
24	15.1	4:52	7:59
25	15.1	4:51	8:00
26	15.2	4:50	8:01
27	15.2	4:50	8:02
28	15.2	4:49	8:03
29	15.3	4:48	8:04
30	15.3	4:47	8:05
31	15.3	4:47	8:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.42 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 5.42 kWh/m² in May across the year — May's 5.42 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.3	Bright
2	5.3	Bright
3	5.3	Bright
4	5.3	Bright
5	5.3	Bright
6	5.3	Bright
7	5.3	Bright
8	5.3	Bright
9	5.4	Bright
10	5.4	Bright
11	5.4	Bright
12	5.4	Bright
13	5.4	Bright
14	5.4	Bright
15	5.4	Bright
16	5.4	Bright
17	5.4	Bright
18	5.4	Bright
19	5.5	Bright
20	5.5	Bright
21	5.5	Bright
22	5.5	Bright
23	5.5	Bright
24	5.5	Bright
25	5.5	Bright
26	5.5	Bright
27	5.5	Bright
28	5.5	Bright
29	5.5	Bright
30	5.5	Bright
31	5.5	Bright

Planning a trip in May

Is May a good time to visit Korsakov?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

2.8

Sightseeing

6th-best month of the year

0.0

Beach & pool

6th-best month of the year

May is a weaker month for outdoor sightseeing in Korsakov.

What to pack for Korsakov in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Korsakov sees daytime highs around 11°C and nights near 4°C. Pack a warm layer. Worth having: rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Korsakov in May

The nearest coast averages about 5°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 17°C and coldest in February near -0°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	1	0	0	1	5	9	14	17	16	11	7	3
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	1	Bracing
Feb	0	Bracing
Mar	0	Bracing
Apr	1	Bracing
May	5	Bracing
Jun	9	Bracing
Jul	14	Bracing
Aug	17	Cool
Sep	16	Cool
Oct	11	Bracing
Nov	7	Bracing
Dec	3	Bracing

UV index in Korsakov in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Korsakov peaks around August 12 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	4	6	6	7	7	5	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	Very high	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	4	Moderate
May	6	High
Jun	6	High
Jul	7	High
Aug	7	Very high
Sep	5	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Korsakov?

Korsakov sits at 46.6°N, 142.8°E, 61 m above sea level, in Russia. The nearest listed city is Yuzhno-Sakhalinsk, 36 km away.

Topography around Korsakov

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Korsakov.

Within 3 km, the terrain around Korsakov has only modest variations in elevation — a maximum elevation change of 121 m around an average of 38 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 462 m; within 80 km, large variations in elevation — a maximum elevation change of 1,026 m.

The land around Korsakov is covered by trees (38%) and artificial surfaces (23%) within 3 km, water (62%) and trees (32%) within 16 km, and water (50%) and trees (46%) within 80 km.

3 km

121 m

trees 38%

16 km

462 m

water 62%

80 km

1,026 m

water 50%

treesgrasslandcroplandartificial surfacesbare terrainwaterwetland

← April Korsakov year-round climate June →Best places to visit in May

May weather nearby: Yuzhno-Sakhalinsk 36 km · Nevel’sk 71 km · Kholmsk 72 km · Makubetsu 159 km · Wakkanai 161 km · Nayoro 255 km · Mombetsu 258 km · Minamishibetsuchō 278 km

Russia travel facts

Travel advisory: Level 4; Do Not Travel
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 32% of US; price level, 2025
GDP per capita: $17,547; 2025
Happiness: 5.8 / 10; World Happiness, 2025
Safe drinking water: 76%; of population, 2024
Homicide rate: 6.8; per 100k, 2021
Road deaths: 12; per 100k/yr, 2019
Income group: High; World Bank
English: Moderate; EF EPI 521
Religion

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Korsakov (46.6341°, 142.7829°, elevation 61 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	9	1
2	9	2
3	9	2
4	9	2
5	10	2
6	10	2
7	10	2
8	10	3
9	10	3
10	10	3
11	10	3
12	11	3
13	11	3
14	11	4
15	11	4
16	11	4
17	11	4
18	12	4
19	12	4
20	12	5
21	12	5
22	12	5
23	12	5
24	12	5
25	13	5
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	34	66
20	34	66
21	34	66
22	35	65
23	34	66
24	34	66
25	34	66
26	35	65
27	35	65
28	35	65
29	35	65
30	34	66
31	33	67

	Rain chance (%)	Snow chance (%)
1	35	12
2	34	11
3	34	11
4	33	10
5	33	10
6	32	9
7	32	8
8	31	8
9	30	7
10	30	7
11	29	6
12	29	5
13	28	5
14	28	4
15	28	4
16	28	3
17	28	3
18	28	3
19	29	2
20	29	2
21	30	2
22	30	1
23	30	1
24	31	1
25	31	1
26	31	0
27	31	0
28	31	0
29	31	0
30	30	0
31	30	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	9	1
2	9	2
3	9	2
4	9	2
5	10	2
6	10	2
7	10	2
8	10	3
9	10	3
10	10	3
11	10	3
12	11	3
13	11	3
14	11	4
15	11	4
16	11	4
17	11	4
18	12	4
19	12	4
20	12	5
21	12	5
22	12	5
23	12	5
24	12	5
25	13	5
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	34	66
20	34	66
21	34	66
22	35	65
23	34	66
24	34	66
25	34	66
26	35	65
27	35	65
28	35	65
29	35	65
30	34	66
31	33	67

	Rain chance (%)	Snow chance (%)
1	35	12
2	34	11
3	34	11
4	33	10
5	33	10
6	32	9
7	32	8
8	31	8
9	30	7
10	30	7
11	29	6
12	29	5
13	28	5
14	28	4
15	28	4
16	28	3
17	28	3
18	28	3
19	29	2
20	29	2
21	30	2
22	30	1
23	30	1
24	31	1
25	31	1
26	31	0
27	31	0
28	31	0
29	31	0
30	30	0
31	30	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	9	1
2	9	2
3	9	2
4	9	2
5	10	2
6	10	2
7	10	2
8	10	3
9	10	3
10	10	3
11	10	3
12	11	3
13	11	3
14	11	4
15	11	4
16	11	4
17	11	4
18	12	4
19	12	4
20	12	5
21	12	5
22	12	5
23	12	5
24	12	5
25	13	5
26	13	6
27	13	6
28	13	6
29	13	6
30	13	6
31	13	6

	Clearer (%)	Cloudier (%)
1	36	64
2	36	64
3	35	65
4	35	65
5	35	65
6	35	65
7	35	65
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	35	65
15	35	65
16	35	65
17	35	65
18	35	65
19	34	66
20	34	66
21	34	66
22	35	65
23	34	66
24	34	66
25	34	66
26	35	65
27	35	65
28	35	65
29	35	65
30	34	66
31	33	67

	Rain chance (%)	Snow chance (%)
1	35	12
2	34	11
3	34	11
4	33	10
5	33	10
6	32	9
7	32	8
8	31	8
9	30	7
10	30	7
11	29	6
12	29	5
13	28	5
14	28	4
15	28	4
16	28	3
17	28	3
18	28	3
19	29	2
20	29	2
21	30	2
22	30	1
23	30	1
24	31	1
25	31	1
26	31	0
27	31	0
28	31	0
29	31	0
30	30	0
31	30	0

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100