Poronaysk weather in January

In January, Poronaysk sees average daytime highs of -11°C and overnight lows near -19°C, with 42 mm of precipitation across 6 wet days and about 8.5 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near -11°C through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 hours at the start of January to 9 hours by month's end. Set against the rest of the year, January is Poronaysk's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Poronaysk's year-round climate.

Daytime high
-11°
12th warmest
Overnight low
-19°
1st coldest
Precipitation
42 mm
6 wet days
Daylight
8 h 24 min
8:24 AM – 4:49 PM
Cloud cover
59%
3rd clearest
Wind
16 km/h
2nd windiest
Solar energy
1.58 kWh/m²
Travel score
0.0
out of 10

Poronaysk is human settlement in Poronaysky District, Sakhalin Oblast, Russia.

Density
303/km²
people per km²
Founded
1869

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near -11°C through the month.

A typical January day in Poronaysk reaches about -11°C in the afternoon and slips back to -19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -17°C and -5°C. Set against its neighbours, January runs about 3°C cooler than December and about 2°C cooler than February.

-30°-20°-10°151015202531
Avg high (°C)Avg low (°C)
1-11-17
2-11-18
3-11-18
4-11-18
5-11-18
6-11-18
7-11-18
8-11-18
9-11-18
10-11-19
11-11-19
12-12-19
13-12-19
14-12-19
15-12-19
16-12-19
17-12-19
18-12-19
19-12-19
20-12-19
21-12-19
22-12-19
23-12-19
24-11-19
25-11-19
26-11-19
27-11-19
28-11-19
29-11-19
30-11-19
31-11-19

How January really feels in Poronaysk

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
31 feel bitter (≤ -10°C)

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

Poronaysk weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-11° / -19°4267.58.50.0
Feb-10° / -19°295.46.49.80.0
Mar-4° / -12°538.19.311.60.0
Apr / -4°75109.113.40.1
May / 7410.53.415.12.0
Jun14° / 599.2015.94.0
Jul17° / 11°809.1015.65.4
Aug19° / 13°10912014.25.6
Sep16° / 10511.6012.44.8
Oct / 10911.2210.51.8
Nov-0° / -7°708.57.58.90.0
Dec-9° / -16°546.67.88.10.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34852
45050
55050
65050
75050
85050
95050
105149
115149
125149
135050
145050
154951
165050
175050
185050
194951
204951
215050
225050
235050
245050
254951
264951
275050
285050
295050
305050
315149

Chance of precipitation in January

Any precipitationSnow

Poronaysk gets around 42 mm of rain and snow over 6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 20% and peaks near 22% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12227
22228
32228
42227
52227
62227
72126
82125
92025
102024
111924
121923
131923
141922
151822
161822
171822
181822
191822
201822
211822
221923
231923
241924
251924
261924
271924
281924
291924
301924
311924

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

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

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 16 km/h in January.

Across January, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 hours at the start of January to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over January. Sunrise moves from 8:29 AM to 8:10 AM, and sunset from 4:32 PM to 5:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.08:294:32
28.18:294:33
38.18:294:34
48.18:294:35
58.18:294:36
68.18:294:37
78.28:294:38
88.28:284:39
98.28:284:41
108.28:284:42
118.38:274:43
128.38:274:44
138.38:264:45
148.48:264:47
158.48:254:48
168.48:244:49
178.58:244:51
188.58:234:52
198.58:224:54
208.68:214:55
218.68:214:56
228.68:204:58
238.78:194:59
248.78:185:01
258.88:175:02
268.88:165:04
278.88:155:06
288.98:145:07
298.98:125:09
309.08:115:10
319.08:105:12

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.58 kWh/m².

For context, solar energy here swings from a low near 1.25 kWh/m² to a high of 5.28 kWh/m² in April across the year — January's 1.58 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.3Dim
31.3Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.6Dim
171.6Dim
181.6Dim
191.6Dim
201.6Dim
211.7Dim
221.7Dim
231.7Dim
241.8Dim
251.8Dim
261.8Dim
271.9Dim
281.9Dim
291.9Dim
302.0Dim
312.0Moderate
Planning a trip in January

Is January a good time to visit Poronaysk?

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

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
6th-best month of the year

January is a weaker month for outdoor sightseeing in Poronaysk.

What to pack for Poronaysk in January

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

In January, Poronaysk sees daytime highs around -11°C and nights near -19°C. Pack a warm layer and a heavy coat. About 6 days see rain.

a warm layera heavy coat

Sea temperature near Poronaysk in January

The nearest coast averages about -0°C in January — 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 16°C and coldest in February near -1°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan0Bracing
Feb0Bracing
Mar0Bracing
Apr1Bracing
May4Bracing
Jun8Bracing
Jul13Bracing
Aug16Cool
Sep14Bracing
Oct10Bracing
Nov5Bracing
Dec2Bracing

UV index in Poronaysk in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Poronaysk peaks around August 10 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 17 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 10UV 7Dec 17UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar2Moderate
Apr4Moderate
May5Moderate
Jun7High
Jul7High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Poronaysk?

Poronaysk sits at 49.2°N, 143.1°E, 7 m above sea level, in Russia. The nearest listed city is Sovetskaya Gavan’, 206 km away.

Topography around Poronaysk

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

Within 3 km, the terrain around Poronaysk has only modest variations in elevation — a maximum elevation change of 13 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 256 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,304 m.

The land around Poronaysk is covered by water (38%) and trees (29%) within 3 km, water (44%), trees (29%) and wetland (21%) within 16 km, and trees (61%) and water (26%) within 80 km.

3 km
13 m
16 km
256 m
80 km
1,304 m
treesgrasslandartificial surfacesbare terrainwaterwetland
January weather nearby: Sovetskaya Gavan’ 206 km · Vanino 207 km · Yuzhno-Sakhalinsk 253 km · Kholmsk 254 km · Korsakov 288 km · Nevel’sk 297 km · Wakkanai 437 km · Makubetsu 439 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
other Christian 2%

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 Poronaysk (49.2204°, 143.0912°, elevation 7 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).