Poronaysk weather in December

In December, Poronaysk sees average daytime highs of -9°C and overnight lows near -16°C, with 54 mm of precipitation across 6.6 wet days and about 8.1 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about -6°C in the first days to -10°C by the end. The sky is clear or mostly clear about 26% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 18 min at the start of December to 8 hours by month's end. Set against the rest of the year, December is Poronaysk's 6th-clearest and 1st-windiest month. For the whole year in context, see Poronaysk's year-round climate.

Daytime high
-9°
10th warmest
Overnight low
-16°
3rd coldest
Precipitation
54 mm
6.6 wet days
Daylight
8 hours
8:24 AM – 4:24 PM
Cloud cover
64%
6th clearest
Wind
16 km/h
1st windiest
Solar energy
1.25 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 December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about -6°C in the first days to -10°C by the end.

A typical December day in Poronaysk reaches about -9°C in the afternoon and slips back to -16°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -15°C and -3°C. Set against its neighbours, December runs about 8°C cooler than November and about 3°C warmer than January.

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

How December really feels in Poronaysk

Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.

Poronaysk weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 9th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33664
43664
53664
63862
73862
84060
93961
104060
114159
124159
134357
144357
154456
164654
174555
184753
194753
204753
214753
224753
234753
244852
254852
264951
274852
284852
294852
304951
314852

Chance of precipitation in December

Any precipitationSnow

Poronaysk gets around 54 mm of rain and snow over 6.6 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 21% and peaks near 24% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
12426
22426
32326
42326
52325
62225
72225
82225
92125
102124
112024
122024
131923
141923
151923
161923
171923
181923
191923
201923
211923
222024
232024
242025
252125
262126
272126
282126
292227
302227
312227

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 16 km/h in December, the windiest month of the year.

Across December, 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
115light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 18 min at the start of December to 8 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 8:09 AM to 8:30 AM, and sunset from 4:26 PM to 4:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.38:094:26
28.38:104:26
38.28:114:25
48.28:124:25
58.28:134:25
68.28:154:24
78.18:164:24
88.18:174:24
98.18:184:24
108.18:194:24
118.18:204:23
128.08:204:23
138.08:214:23
148.08:224:24
158.08:234:24
168.08:244:24
178.08:244:24
188.08:254:24
198.08:264:25
208.08:264:25
218.08:274:25
228.08:274:26
238.08:284:26
248.08:284:27
258.08:294:28
268.08:294:28
278.08:294:29
288.08:294:30
298.08:304:30
308.08:304:31
318.08:304:32

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.25 kWh/m² — the year's lowest.

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 — December's 1.25 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.3Dim
31.3Dim
41.3Dim
51.3Dim
61.3Dim
71.3Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Poronaysk?

Our two travel scores rate December 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

December is a weaker month for outdoor sightseeing in Poronaysk.

What to pack for Poronaysk in December

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

In December, Poronaysk sees daytime highs around -9°C and nights near -16°C. Pack a warm layer and a heavy coat. About 7 days see rain.

a warm layera heavy coat

Sea temperature near Poronaysk in December

The nearest coast averages about 2°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December 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
December 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).