Lomonosov weather in May

In May, Lomonosov sees average daytime highs of 11°C and overnight lows near 6°C, with 47 mm of precipitation across 7.9 wet days and about 16.7 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 8°C in the first days to 12°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 30 min at the start of May to 17 h 48 min by month's end. Set against the rest of the year, May is Lomonosov's 1st-clearest and 9th-windiest month. For the whole year in context, see Lomonosov's year-round climate.

Daytime high
11°
5th warmest
Overnight low
8th coldest
Precipitation
47 mm
7.9 wet days
Daylight
16 h 48 min
4:34 AM – 9:20 PM
Cloud cover
56%
1st clearest
Wind
16 km/h
9th windiest
Solar energy
5.49 kWh/m²
Travel score
2.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 8°C in the first days to 12°C by the end.

A typical May day in Lomonosov reaches about 11°C in the afternoon and slips back to 6°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 16°C. Set against its neighbours, May runs about 6°C warmer than April and about 4°C cooler than June.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
184
284
384
494
595
695
795
895
9105
10106
11106
12106
13106
14116
15116
16117
17117
18117
19117
20117
21127
22127
23127
24127
25128
26128
27128
28128
29128
30128
31138

How May really feels in Lomonosov

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 1 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
1
wind chill below the day's low

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

Lomonosov weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24654
34753
44753
54753
64753
74753
84852
94852
104951
114951
124951
135050
144951
154951
164951
174852
184951
195050
205050
214951
224951
235050
245050
255050
265149
275149
285149
295149
305248
315248

Chance of precipitation in May

Any precipitationSnow

Lomonosov gets around 47 mm of rain and snow over 7.9 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 26% and peaks near 26% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1253
2253
3262
4262
5262
6262
7261
8261
9251
10251
11250
12250
13250
14250
15250
16250
17250
18260
19260
20260
21260
22260
23260
24260
25260
26260
27260
28260
29260
30260
31260

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
13991
14991
15991
16991
17991
18991
19991
20991
21982
22982
23982
24982
25982
26973
27973
28973
29973
30964
31964

Wind in May

Winds average 16 km/h in May.

Across May, daily wind ranges from about 16 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light 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
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 30 min at the start of May to 17 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 138 minutes over May. Sunrise moves from 5:12 AM to 4:05 AM, and sunset from 8:44 PM to 9:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.55:128:44
215.65:098:47
315.75:078:49
415.85:048:52
515.95:018:54
616.04:598:56
716.04:568:59
816.14:539:01
916.24:519:04
1016.34:489:06
1116.44:469:09
1216.54:439:11
1316.54:419:13
1416.64:399:16
1516.74:369:18
1616.84:349:20
1716.84:329:23
1816.94:299:25
1917.04:279:27
2017.14:259:29
2117.14:239:32
2217.24:219:34
2317.34:199:36
2417.44:179:38
2517.44:159:40
2617.54:139:42
2717.54:119:44
2817.64:109:46
2917.74:089:48
3017.74:069:50
3117.84:059:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.49 kWh/m².

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 — May's 5.49 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.6Bright
195.6Bright
205.6Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Is May a good time to visit Lomonosov?

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

2.7
Sightseeing
5th-best month of the year
0.0
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Lomonosov.

What to pack for Lomonosov in May

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

In May, Lomonosov sees daytime highs around 11°C and nights near 6°C. Pack a warm layer. Worth having: sun protection. About 8 days see rain.

a warm layersun protection

Sea temperature near Lomonosov in May

The nearest coast averages about 8°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 4 — enough to warrant sun protection. 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).