Lomonosov weather in December

In December, Lomonosov sees average daytime highs of -1°C and overnight lows near -4°C, with 55 mm of precipitation across 13.4 wet days and about 5.7 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 1°C in the first days to -2°C by the end. The sky is clear or mostly clear about 4% of the time in December, and the air most often feels dry.

Daylight stretches from about 6 h 06 min at the start of December to 5 h 42 min by month's end. Set against the rest of the year, December is Lomonosov's 11th-clearest and 1st-windiest month. For the whole year in context, see Lomonosov's year-round climate.

Daytime high
-1°
10th warmest
Overnight low
-4°
4th coldest
Precipitation
55 mm
13.4 wet days
Daylight
5 h 36 min
10:09 AM – 3:45 PM
Cloud cover
89%
11th clearest
Wind
23 km/h
1st windiest
Solar energy
0.16 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 1°C in the first days to -2°C by the end.

A typical December day in Lomonosov reaches about -1°C in the afternoon and slips back to -4°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between -7°C and 3°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°C warmer than January.

-15°-10°-5°151015202531
Avg high (°C)Avg low (°C)
11-2
21-2
31-2
41-2
50-2
60-2
70-2
80-2
90-3
100-3
110-3
120-3
130-3
140-3
15-1-3
16-1-4
17-1-4
18-1-4
19-1-4
20-1-4
21-1-4
22-1-4
23-2-5
24-2-5
25-2-5
26-2-5
27-2-5
28-2-5
29-2-5
30-2-5
31-2-5

How December really feels in Lomonosov

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
17 feel bitter (≤ -10°C)

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

Lomonosov weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -6°4411.6126.40.0
Feb-4° / -7°349.49.88.70.0
Mar-1° / -4°3797.111.30.0
Apr / 389314.10.3
May11° / 477.90.216.72.7
Jun14° / 10°6410.1018.34.2
Jul18° / 14°599.2017.75.8
Aug17° / 13°7710.7015.35.3
Sep13° / 10°6911.8012.63.3
Oct / 7913.61.59.80.8
Nov / 7113.96.27.20.0
Dec-1° / -4°5513.410.45.70.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6991
7991
8991
9991
10991
11991
12991
13991
14991
151090
161090
171090
181090
191090
201090
21991
22991
23991
24892
25991
26991
27991
28991
29892
30991
31991

Chance of precipitation in December

Any precipitationSnow

Lomonosov gets around 55 mm of rain and snow over 13.4 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 42% and peaks near 44% on the wettest days, and about 10 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
14427
24428
34428
44328
54329
64329
74330
84330
94330
104231
114231
124232
134132
144133
154133
164134
174134
184135
194235
204236
214236
224236
234236
244236
254236
264236
274136
284136
294136
304036
314036

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 23 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 22 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3022breezy
3122breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 6 h 06 min at the start of December to 5 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over December. Sunrise moves from 9:47 AM to 10:14 AM, and sunset from 3:55 PM to 3:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
16.19:473:55
26.19:493:54
36.09:503:52
46.09:523:51
55.99:543:50
65.99:563:50
75.99:573:49
85.89:593:48
95.810:013:47
105.710:023:47
115.710:033:46
125.710:053:46
135.710:063:45
145.610:073:45
155.610:083:45
165.610:093:45
175.610:103:45
185.610:113:45
195.610:123:45
205.510:123:45
215.510:133:46
225.510:143:46
235.510:143:47
245.510:143:47
255.610:153:48
265.610:153:49
275.610:153:50
285.610:153:51
295.610:153:52
305.610:153:53
315.710:143:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.16 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 5.81 kWh/m² in June across the year — December's 0.16 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.2Dim
20.2Dim
30.2Dim
40.2Dim
50.2Dim
60.2Dim
70.2Dim
80.2Dim
90.2Dim
100.2Dim
110.2Dim
120.2Dim
130.2Dim
140.1Dim
150.1Dim
160.1Dim
170.1Dim
180.1Dim
190.1Dim
200.1Dim
210.1Dim
220.1Dim
230.1Dim
240.2Dim
250.2Dim
260.2Dim
270.2Dim
280.2Dim
290.2Dim
300.2Dim
310.2Dim
Planning a trip in December

Is December a good time to visit Lomonosov?

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
5th-best month of the year

December is a weaker month for outdoor sightseeing in Lomonosov.

What to pack for Lomonosov in December

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

In December, Lomonosov sees daytime highs around -1°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear and a windbreaker. About 13 days see rain.

a warm layera heavy coatrain geara windbreaker

Sea temperature near Lomonosov 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 at the nearest coast (about 25 km away) is warmest in July at about 18°C and coldest in February near -0°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan0Bracing
Feb0Bracing
Mar0Bracing
Apr2Bracing
May8Bracing
Jun14Bracing
Jul18Cool
Aug18Cool
Sep15Bracing
Oct10Bracing
Nov6Bracing
Dec2Bracing

UV index in Lomonosov in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lomonosov peaks around July 12 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 17 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 12UV 5Dec 17UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5High
Jul5High
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low

Air quality in Lomonosov in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Lomonosov is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (November, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1719 µg/m³Nov 1710 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar17Moderate
Apr20Moderate
May17Moderate
Jun15Moderate
Jul16Moderate
Aug16Moderate
Sep15Moderate
Oct12Good
Nov10Good
Dec11Good
Location & terrain

Where is Lomonosov?

Lomonosov sits at 59.9°N, 29.8°E, 30 m above sea level, in Russia. The nearest listed city is Petrodvorets, 2.0 km away.

Topography around Lomonosov

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

Within 3 km, the terrain around Lomonosov has only modest variations in elevation — a maximum elevation change of 61 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 115 m; within 80 km, only modest variations in elevation — a maximum elevation change of 236 m.

The land around Lomonosov is covered by trees (62%) and water (20%) within 3 km, water (44%) and trees (40%) within 16 km, and trees (61%) and water (20%) within 80 km.

3 km
61 m
16 km
115 m
80 km
236 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Petrodvorets 2.0 km · Peterhof 8.0 km · Kronstadt 10 km · Sosnovaya Polyana 22 km · Uritsk 24 km · Sestroretsk 24 km · Gorelovo 25 km · Krasnoye Selo 26 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 Lomonosov (59.9061°, 29.7725°, elevation 30 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).