Kostroma weather in May

In May, Kostroma sees average daytime highs of 17°C and overnight lows near 7°C, with 58 mm of precipitation across 11.1 wet days and about 16.3 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 19°C by the end. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 12 min at the start of May to 17 h 12 min by month's end. Set against the rest of the year, May is Kostroma's 1st-clearest and 9th-windiest month. For the whole year in context, see Kostroma's year-round climate.

Daytime high
17°
4th warmest
Overnight low
8th coldest
Precipitation
58 mm
11.1 wet days
Daylight
16 h 18 min
4:02 AM – 8:23 PM
Cloud cover
64%
1st clearest
Wind
13 km/h
9th windiest
Solar energy
5.15 kWh/m²
Travel score
5.2
out of 10

Kostroma is city in the center of European Russia.

Density
1,919/km²
people per km²
Founded
1152

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 15°C in the first days to 19°C by the end.

A typical May day in Kostroma reaches about 17°C in the afternoon and slips back to 7°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 24°C. Set against its neighbours, May runs about 8°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1144
2154
3154
4155
5155
6165
7165
8165
9166
10166
11166
12176
13176
14176
15176
16177
17177
18177
19177
20187
21187
22188
23188
24188
25188
26188
27198
28198
29199
30199
31199

How May really feels in Kostroma

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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kostroma 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-6° / -12°4111.112.570.0
Feb-5° / -11°318.6108.90.0
Mar / -7°359.28.611.40.0
Apr10° / 409.22.7142.0
May17° / 5811.10.316.35.2
Jun21° / 11°7511.8017.66.1
Jul23° / 14°7312.5017.16.4
Aug21° / 12°7012.1015.16.1
Sep15° / 6511.10.212.54.2
Oct / 6512.13.3101.0
Nov-0° / -4°5010.87.77.60.0
Dec-5° / -9°4210.411.56.30.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
34060
44060
54159
64060
74060
84060
94258
104159
114159
124258
134258
144159
154258
164258
174258
184258
194258
204159
214258
224258
234258
244159
254159
264159
274159
284159
294258
304258
314060

Chance of precipitation in May

Any precipitationSnow

Kostroma gets around 58 mm of rain and snow over 11.1 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 36% and peaks near 39% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1323
2322
3332
4332
5332
6342
7342
8342
9342
10342
11342
12342
13352
14352
15351
16361
17361
18361
19371
20371
21371
22381
23380
24380
25390
26390
27390
28390
29390
30380
31380

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 94% 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
69910
79910
89910
99910
109820
119820
129730
139730
149640
159550
169550
179460
189370
199271
209181
219181
229091
239091
248992
2588102
2688102
2787103
2887103
2987103
3086104
3186104

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 15 h 12 min at the start of May to 17 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 120 minutes over May. Sunrise moves from 4:37 AM to 3:37 AM, and sunset from 7:50 PM to 8:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:377:50
215.34:347:53
315.44:327:55
415.54:297:57
515.54:277:59
615.64:248:01
715.74:228:04
815.84:208:06
915.84:188:08
1015.94:158:10
1116.04:138:12
1216.14:118:14
1316.14:098:16
1416.24:078:18
1516.34:058:21
1616.34:028:23
1716.44:008:25
1816.53:588:27
1916.53:578:29
2016.63:558:31
2116.73:538:33
2216.73:518:34
2316.83:498:36
2416.83:488:38
2516.93:468:40
2617.03:448:42
2717.03:438:44
2817.13:418:45
2917.13:408:47
3017.23:388:49
3117.23:378:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.15 kWh/m².

For context, solar energy here swings from a low near 0.26 kWh/m² to a high of 5.52 kWh/m² in June across the year — May's 5.15 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
95.0Bright
105.0Bright
115.0Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Is May a good time to visit Kostroma?

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

5.2
Sightseeing
4th-best month of the year
1.3
Beach & pool
4th-best month of the year

May is a reasonable time to visit Kostroma for sightseeing.

What to pack for Kostroma in May

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

In May, Kostroma sees daytime highs around 17°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Kostroma 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 Kostroma peaks around July 13 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 13UV 6Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May4Moderate
Jun5High
Jul6High
Aug4Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Kostroma?

Kostroma sits at 57.8°N, 40.9°E, 109 m above sea level, in Russia. The nearest listed city is Volgorechensk, 38 km away.

Topography around Kostroma

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

Within 3 km, the terrain around Kostroma has only modest variations in elevation — a maximum elevation change of 80 m around an average of 102 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 116 m; within 80 km, only modest variations in elevation — a maximum elevation change of 167 m.

The land around Kostroma is covered by artificial surfaces (47%) and trees (31%) within 3 km, trees (41%), grassland (27%) and cropland (20%) within 16 km, and trees (66%) and grassland (21%) within 80 km.

3 km
80 m
16 km
116 m
80 km
167 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Volgorechensk 38 km · Nerekhta 40 km · Privolzhsk 48 km · Furmanov 58 km · Yaroslavl 64 km · Danilov 65 km · Kineshma 80 km · Gavrilov-Yam 82 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 Kostroma (57.7664°, 40.9283°, elevation 109 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. 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).