Sertolovo weather in May

In May, Sertolovo sees average daytime highs of 15°C and overnight lows near 5°C, with 56 mm of precipitation across 10.1 wet days and about 16.8 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 17°C by the end. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 36 min at the start of May to 17 h 54 min by month's end. Set against the rest of the year, May is Sertolovo's 1st-clearest and 9th-windiest month. For the whole year in context, see Sertolovo's year-round climate.

Daytime high
15°
4th warmest
Overnight low
8th coldest
Precipitation
56 mm
10.1 wet days
Daylight
16 h 48 min
4:31 AM – 9:20 PM
Cloud cover
60%
1st clearest
Wind
11 km/h
9th windiest
Solar energy
5.5 kWh/m²
Travel score
4.7
out of 10

Sertolovo is town in Vsevolozhsky District, Leningrad Oblast, Russia.

Density
1,587/km²
people per km²
Founded
1936

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 17°C by the end.

A typical May day in Sertolovo reaches about 15°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 23°C. Set against its neighbours, May runs about 7°C warmer than April and about 4°C cooler than June.

10°20°151015202531
Avg high (°C)Avg low (°C)
1133
2133
3133
4133
5143
6143
7144
8144
9144
10144
11154
12154
13154
14155
15155
16155
17165
18165
19166
20166
21166
22166
23176
24176
25177
26177
27177
28177
29177
30187
31188

How May really feels in Sertolovo

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 4 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
4
wind chill below the day's low

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

Sertolovo weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -9°4311.211.76.40.0
Feb-4° / -9°359.29.28.60.0
Mar / -6°379.47.911.30.0
Apr / -0°42103.714.21.7
May15° / 5610.10.316.84.7
Jun20° / 10°7712.5018.45.8
Jul22° / 13°8312.7017.76.2
Aug20° / 12°8212.6015.45.9
Sep15° / 6011.7012.64.1
Oct / 59121.79.71.1
Nov / -2°5511.46.87.10.0
Dec-2° / -6°5112.410.95.60.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24258
34258
44258
54258
64258
74357
84357
94357
104357
114357
124357
134357
144357
154357
164357
174456
184456
194456
204456
214456
224555
234555
244654
254654
264753
274753
284753
294753
304753
314852

Chance of precipitation in May

Any precipitationSnow

Sertolovo gets around 56 mm of rain and snow over 10.1 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 32% and peaks near 35% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1304
2303
3303
4303
5302
6302
7312
8312
9311
10311
11311
12311
13311
14321
15321
16321
17331
18331
19341
20341
21341
22350
23350
24350
25350
26340
27340
28340
29340
30340
31340

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
99910
109910
119910
129910
139910
149820
159820
169820
179820
189820
199730
209730
219730
229730
239541
249541
259541
269541
279541
289541
299541
309442
319352

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 36 min at the start of May to 17 h 54 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 5:09 AM to 4:01 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)
115.65:098:44
215.75:068:46
315.75:048:49
415.85:018:51
515.94:588:54
616.04:568:56
716.14:538:58
816.24:509:01
916.34:489:03
1016.34:459:06
1116.44:439:08
1216.54:409:11
1316.64:389:13
1416.74:359:15
1516.74:339:18
1616.84:319:20
1716.94:289:23
1817.04:269:25
1917.14:249:27
2017.14:229:29
2117.24:209:32
2217.34:179:34
2317.34:159:36
2417.44:139:38
2517.54:119:40
2617.54:109:42
2717.64:089:44
2817.74:069:46
2917.74:049:48
3017.84:039:50
3117.94:019:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.5 kWh/m².

For context, solar energy here swings from a low near 0.15 kWh/m² to a high of 5.84 kWh/m² in June across the year — May's 5.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.1Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.5Bright
175.6Bright
185.6Bright
195.6Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.9Bright
Planning a trip in May

Is May a good time to visit Sertolovo?

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

4.7
Sightseeing
4th-best month of the year
0.6
Beach & pool
4th-best month of the year

May is a reasonable time to visit Sertolovo for sightseeing.

What to pack for Sertolovo in May

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

In May, Sertolovo sees daytime highs around 15°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Sertolovo 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 18 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 Sertolovo 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 Sertolovo peaks around July 13 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 13UV 5Dec 17UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul6High
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low

Air quality in Sertolovo 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 Sertolovo 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 Sertolovo?

Sertolovo sits at 60.1°N, 30.2°E, 48 m above sea level, in Russia. The nearest listed city is Parnas, 12 km away.

Topography around Sertolovo

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

Within 3 km, the terrain around Sertolovo has only modest variations in elevation — a maximum elevation change of 74 m around an average of 51 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 148 m; within 80 km, only modest variations in elevation — a maximum elevation change of 233 m.

The land around Sertolovo is covered by trees (67%) within 3 km, trees (71%) within 16 km, and trees (55%) and water (30%) within 80 km.

3 km
74 m
16 km
148 m
80 km
233 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Parnas 12 km · Ozerki 13 km · Kolomyagi 14 km · Sestroretsk 14 km · Untolovo 15 km · Komendantsky aerodrom 16 km · Sosnovka 16 km · Kurortnyy 16 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 Sertolovo (60.1444°, 30.2017°, elevation 48 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).