Utsunomiya weather in May

In May, Utsunomiya sees average daytime highs of 23°C and overnight lows near 13°C, with 134 mm of rain across 12.4 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°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 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Utsunomiya's 8th-clearest and 3rd-windiest month. For the whole year in context, see Utsunomiya's year-round climate.

Daytime high
23°
5th warmest
Overnight low
13°
8th coldest
Rainfall
134 mm
12.4 wet days
Daylight
13 h 54 min
4:38 AM – 6:35 PM
Cloud cover
69%
8th clearest
Wind
8 km/h
3rd windiest
Solar energy
5.08 kWh/m²
Travel score
6.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical May day in Utsunomiya reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12111
22111
32111
42112
52212
62212
72212
82212
92212
102212
112213
122213
132213
142313
152313
162313
172314
182314
192314
202314
212414
222414
232414
242415
252415
262415
272415
282415
292415
302416
312516

How May really feels in Utsunomiya

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.

Utsunomiya weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°526.11.49.81.8
Feb10° / 516.61.810.62.2
Mar13° / 9711.41.111.73.6
Apr18° / 10911.70.212.95.5
May23° / 13°13412.4013.96.3
Jun26° / 18°14415.1014.45.5
Jul29° / 22°17416.4014.24.4
Aug30° / 23°12813.8013.44.2
Sep27° / 19°16514.1012.25.6
Oct21° / 13°16412011.16.2
Nov16° / 768.1010.15.2
Dec11° / 496.40.39.53.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34357
44357
54159
64159
74060
83961
93862
103961
113862
123862
133763
143763
153763
163763
173763
183763
193664
203664
213664
223664
233664
243565
253565
263565
273466
283466
293367
303367
313169

Chance of precipitation in May

Any precipitation

Utsunomiya gets around 134 mm of rain over 12.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
638
738
838
939
1039
1140
1240
1340
1440
1541
1641
1741
1841
1941
2041
2141
2241
2340
2440
2540
2640
2740
2839
2939
3039
3139

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 57% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1811630
2781741
3771841
4761941
5742051
6732151
7712261
8702361
9682471
10682471
11662581
12652681
13632791
14622891
156029101
165830111
175731111
185631121
195432131
205233141
215034151
224834162
234635172
244436182
254237192
264038202
273838213
283639223
293440233
303240253
313040264

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 4:53 AM to 4:29 AM, and sunset from 6:22 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:536:22
213.54:526:23
313.54:516:24
413.64:506:25
513.64:496:25
613.64:486:26
713.74:476:27
813.74:466:28
913.74:456:29
1013.84:446:30
1113.84:436:31
1213.84:426:32
1313.94:416:32
1413.94:406:33
1513.94:396:34
1613.94:386:35
1714.04:386:36
1814.04:376:37
1914.04:366:37
2014.04:356:38
2114.14:356:39
2214.14:346:40
2314.14:336:41
2414.14:336:41
2514.24:326:42
2614.24:326:43
2714.24:316:44
2814.24:316:44
2914.34:306:45
3014.34:306:46
3114.34:296:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.08 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.08 kWh/m² in May across the year — May's 5.08 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Is May a good time to visit Utsunomiya?

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

6.3
Sightseeing
1st-best month of the year
4.8
Beach & pool
5th-best month of the year

May is a reasonable time to visit Utsunomiya for sightseeing.

What to pack for Utsunomiya in May

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

In May, Utsunomiya sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Utsunomiya in May

The nearest coast averages about 17°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 70 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 24 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Utsunomiya in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Utsunomiya peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 17UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Utsunomiya 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 Utsunomiya is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Utsunomiya?

Utsunomiya sits at 36.6°N, 139.9°E, 137 m above sea level, in Japan. The nearest listed city is Hōshakuji, 12 km away.

Topography around Utsunomiya

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

Within 3 km, the terrain around Utsunomiya has only modest variations in elevation — a maximum elevation change of 91 m around an average of 126 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 522 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,553 m.

The land around Utsunomiya is covered by artificial surfaces (83%) within 3 km, cropland (38%), trees (29%) and artificial surfaces (28%) within 16 km, and trees (59%) within 80 km.

3 km
91 m
16 km
522 m
80 km
2,553 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Hōshakuji 12 km · Kanuma 14 km · Ujiie 15 km · Kaminokawa 15 km · Shimotsuke 17 km · Mibu 18 km · Mooka 19 km · Sakura 19 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

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 Utsunomiya (36.5667°, 139.8833°, elevation 137 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).