Ostashkov weather in May

In May, Ostashkov sees average daytime highs of 16°C and overnight lows near 7°C, with 68 mm of precipitation across 12.5 wet days and about 16.2 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 18°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 15 h 06 min at the start of May to 17 h 06 min by month's end. Set against the rest of the year, May is Ostashkov's 1st-clearest and 9th-windiest month. For the whole year in context, see Ostashkov's year-round climate.

Daytime high
16°
4th warmest
Overnight low
8th coldest
Precipitation
68 mm
12.5 wet days
Daylight
16 h 12 min
4:37 AM – 8:50 PM
Cloud cover
65%
1st clearest
Wind
12 km/h
9th windiest
Solar energy
4.94 kWh/m²
Travel score
4.6
out of 10

Ostashkov is human settlement in Ostashkovsky District, Tver Oblast, Russia.

Density
1,505/km²
people per km²
Founded
1301

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 14°C in the first days to 18°C by the end.

A typical May day in Ostashkov reaches about 16°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 22°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)
1134
2134
3145
4145
5145
6145
7146
8156
9156
10156
11156
12156
13157
14167
15167
16167
17167
18168
19168
20168
21178
22178
23178
24179
25179
26179
27179
28179
29189
30189
311810

How May really feels in Ostashkov

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.

Ostashkov weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -9°4511.713.47.10.0
Feb-4° / -9°349.511.190.0
Mar / -5°379.68.611.40.0
Apr / 399.22.513.91.7
May16° / 6812.50.216.24.6
Jun19° / 12°8513.6017.55.5
Jul22° / 14°9214.10175.9
Aug20° / 12°8512.70155.8
Sep14° / 6311.60.112.53.9
Oct / 6912.82.5101.0
Nov / -3°5211.77.67.80.0
Dec-3° / -7°4711.811.96.50.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
24060
33961
43961
53961
63961
73961
84060
93961
103961
113961
123862
133862
143763
153763
163763
173664
183664
193763
203763
213763
223763
233763
243961
254060
264060
274159
284159
294258
304258
314357

Chance of precipitation in May

Any precipitationSnow

Ostashkov gets around 68 mm of rain and snow over 12.5 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 39% and peaks near 44% 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 (%)
1332
2332
3342
4342
5342
6351
7351
8361
9361
10361
11371
12371
13381
14391
15391
16401
17411
18411
19421
20420
21430
22430
23430
24430
25440
26430
27430
28430
29430
30430
31430

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 95% 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
49910
59910
69910
79910
89820
99820
109820
119730
129730
139640
149640
159550
169550
179550
189460
199460
209271
219271
229271
239181
249181
259181
269082
279082
289082
298992
308992
318893

Wind in May

Winds average 12 km/h in May.

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

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light 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 06 min at the start of May to 17 h 06 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 5:10 AM to 4:13 AM, and sunset from 8:19 PM to 9:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.15:108:19
215.25:088:21
315.35:068:24
415.45:038:26
515.45:018:28
615.54:598:30
715.64:568:32
815.74:548:34
915.74:528:36
1015.84:508:38
1115.94:478:40
1216.04:458:42
1316.04:438:44
1416.14:418:46
1516.24:398:48
1616.24:378:50
1716.34:358:52
1816.44:338:54
1916.44:318:56
2016.54:308:58
2116.54:289:00
2216.64:269:02
2316.74:249:04
2416.74:239:06
2516.84:219:07
2616.84:209:09
2716.94:189:11
2816.94:179:12
2917.04:159:14
3017.04:149:16
3117.14:139:17

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.94 kWh/m².

For context, solar energy here swings from a low near 0.27 kWh/m² to a high of 5.23 kWh/m² in June across the year — May's 4.94 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.7Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
315.3Bright
Planning a trip in May

Is May a good time to visit Ostashkov?

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

4.6
Sightseeing
4th-best month of the year
0.6
Beach & pool
4th-best month of the year

May is a reasonable time to visit Ostashkov for sightseeing.

What to pack for Ostashkov in May

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

In May, Ostashkov sees daytime highs around 16°C and nights near 7°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

UV index in Ostashkov 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 Ostashkov peaks around July 11 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. 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 11UV 6Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May4Moderate
Jun6High
Jul6High
Aug4Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Ostashkov?

Ostashkov sits at 57.1°N, 33.1°E, 210 m above sea level, in Russia. The nearest listed city is Valday, 93 km away.

Topography around Ostashkov

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

Within 3 km, the terrain around Ostashkov has only modest variations in elevation — a maximum elevation change of 23 m around an average of 208 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 87 m; within 80 km, significant variations in elevation — a maximum elevation change of 335 m.

The land around Ostashkov is covered by water (44%) and trees (26%) within 3 km, trees (64%) within 16 km, and trees (85%) within 80 km.

3 km
23 m
16 km
87 m
80 km
335 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Valday 93 km · Bologoye 100 km · Vyshniy Volochëk 100 km · Nelidovo 104 km · Torzhok 113 km · Rzhev 123 km · Udomlya 139 km · Staraya Russa 141 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 Ostashkov (57.1469°, 33.1066°, elevation 210 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).