Nasukarasuyama weather in May

In May, Nasukarasuyama sees average daytime highs of 22°C and overnight lows near 12°C, with 132 mm of rain across 12.6 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 22% 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 Nasukarasuyama's 8th-clearest and 5th-windiest month. For the whole year in context, see Nasukarasuyama's year-round climate.

Daytime high
22°
5th warmest
Overnight low
12°
8th coldest
Rainfall
132 mm
12.6 wet days
Daylight
13 h 54 min
4:37 AM – 6:34 PM
Cloud cover
69%
8th clearest
Wind
8 km/h
5th windiest
Solar energy
5.2 kWh/m²
Travel score
6.1
out of 10

Nasukarasuyama is city in Tochigi Prefecture, Japan.

Density
143/km²
people per km²
Founded
2005

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 20°C in the first days to 23°C by the end.

A typical May day in Nasukarasuyama reaches about 22°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 26°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)
12010
22010
32010
42010
52010
62010
72011
82111
92111
102111
112111
122111
132112
142112
152112
162212
172212
182212
192213
202213
212213
222213
232313
242313
252314
262314
272314
282314
292314
302314
312314

How May really feels in Nasukarasuyama

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.

Nasukarasuyama weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°5262.99.80.9
Feb / -1°5272.910.61.3
Mar11° / 10011.72.911.72.8
Apr17° / 11412.10.712.95.0
May22° / 12°13212.6013.96.1
Jun25° / 17°14315.2014.55.6
Jul28° / 21°18618.2014.34.6
Aug29° / 22°14115.7013.44.5
Sep25° / 18°16714.5012.25.8
Oct20° / 12°16012.3011.15.9
Nov14° / 7980.1104.5
Dec / 5071.19.52.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 (%)
14357
24258
34159
44060
54060
63961
73862
83862
93862
103763
113664
123664
133664
143664
153664
163664
173664
183664
193664
203664
213664
223664
233565
243565
253664
263664
273466
283466
293466
303367
313169

Chance of precipitation in May

Any precipitation

Nasukarasuyama gets around 132 mm of rain over 12.6 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 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
638
738
839
939
1039
1139
1239
1340
1440
1540
1640
1740
1840
1941
2041
2141
2241
2342
2442
2541
2641
2741
2841
2941
3041
3141

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1861220
2861220
3851320
4841420
5831520
6821620
7811720
8801730
9791830
10791830
11791830
12771940
13771940
14762040
15762040
16742150
17732250
18722260
19702370
20682480
21682480
22652591
236326101
246127111
255928121
265729131
275530141
285232151
295033161
304834172
314535182

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
197calm
207calm
217calm
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 4:52 AM to 4:28 AM, and sunset from 6:21 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:526:21
213.54:516:22
313.54:506:23
413.64:496:24
513.64:486:24
613.64:476:25
713.74:466:26
813.74:456:27
913.74:446:28
1013.84:436:29
1113.84:426:30
1213.84:416:31
1313.94:406:31
1413.94:396:32
1513.94:386:33
1613.94:376:34
1714.04:366:35
1814.04:366:36
1914.04:356:37
2014.14:346:37
2114.14:336:38
2214.14:336:39
2314.14:326:40
2414.24:316:41
2514.24:316:41
2614.24:306:42
2714.24:306:43
2814.24:296:44
2914.34:296:44
3014.34:286:45
3114.34:286:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.2 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.2 kWh/m² in May across the year — May's 5.2 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in May

Hazard calendar for Nasukarasuyama

In seasonPeak

In May, Nasukarasuyama sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Nasukarasuyama sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Nasukarasuyama?

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

6.1
Sightseeing
1st-best month of the year
4.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Nasukarasuyama for sightseeing.

What to pack for Nasukarasuyama in May

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

In May, Nasukarasuyama sees daytime highs around 22°C and nights near 12°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Nasukarasuyama 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 52 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 Nasukarasuyama 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 Nasukarasuyama 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 (low).

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
Jan2Low
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Nasukarasuyama 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 Nasukarasuyama 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 Nasukarasuyama?

Nasukarasuyama sits at 36.7°N, 140.2°E, 89 m above sea level, in Japan. The nearest listed city is Karasuyama, 1.0 km away.

Topography around Nasukarasuyama

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

Within 3 km, the terrain around Nasukarasuyama has only modest variations in elevation — a maximum elevation change of 234 m around an average of 125 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 490 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,553 m.

The land around Nasukarasuyama is covered by trees (63%) within 3 km, trees (71%) within 16 km, and trees (58%) within 80 km.

3 km
234 m
16 km
490 m
80 km
2,553 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Karasuyama 1.0 km · Ogawa 11 km · Hōshakuji 16 km · Sakura 17 km · Ujiie 18 km · Daigo 21 km · Mashiko 21 km · Hitachiomiya 24 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 Nasukarasuyama (36.6523°, 140.1608°, elevation 89 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).