Sukagawa weather in May

In May, Sukagawa sees average daytime highs of 20°C and overnight lows near 10°C, with 115 mm of rain across 12.3 wet days and about 14 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 22°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 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Sukagawa's 8th-clearest and 6th-windiest month. For the whole year in context, see Sukagawa's year-round climate.

Daytime high
20°
5th warmest
Overnight low
10°
8th coldest
Rainfall
115 mm
12.3 wet days
Daylight
14 hours
4:35 AM – 6:35 PM
Cloud cover
68%
8th clearest
Wind
10 km/h
6th windiest
Solar energy
5.35 kWh/m²
Travel score
5.9
out of 10

Sukagawa is city in Fukushima Prefecture, Japan.

Density
268/km²
people per km²
Founded
1954

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 18°C in the first days to 22°C by the end.

A typical May day in Sukagawa reaches about 20°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1188
2188
3188
4189
5189
6199
7199
8199
9199
101910
111910
121910
131910
142010
152010
162011
172011
182011
192011
202011
212111
222111
232112
242112
252112
262112
272112
282112
292213
302213
312213

How May really feels in Sukagawa

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.

Sukagawa 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 / -3°547.26.79.70.0
Feb / -3°497.25.110.60.1
Mar / 91114.911.71.6
Apr15° / 10311.51.312.94.2
May20° / 10°11512.30145.9
Jun23° / 15°13114.4014.55.7
Jul27° / 19°18717.6014.35.1
Aug28° / 20°14115.1013.45.2
Sep24° / 17°17114.5012.35.8
Oct18° / 10°15011.60115.4
Nov12° / 758.10.3103.4
Dec / -1°497.93.59.50.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24357
34357
44258
54258
64159
74159
84159
94060
103961
113961
123862
133862
143862
153862
163862
173862
183862
193862
203763
213763
223763
233763
243664
253664
263763
273664
283565
293565
303367
313268

Chance of precipitation in May

Any precipitation

Sukagawa gets around 115 mm of rain over 12.3 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 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
538
638
739
839
939
1040
1140
1240
1340
1440
1540
1640
1740
1839
1939
2039
2139
2239
2339
2438
2538
2638
2737
2837
2937
3037
3137

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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19541
29451
39451
49451
59361
69361
79271
89271
99181
109181
119091
129091
139091
1488102
1588102
1687112
1786122
1886122
1985132
2083143
2182153
2281163
2380173
2478184
2577194
2676204
2774224
2872235
2970255
3069265
3166286

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 4:50 AM to 4:25 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)
113.54:506:21
213.54:496:22
313.64:486:23
413.64:476:24
513.74:466:25
613.74:456:26
713.74:436:27
813.84:426:27
913.84:416:28
1013.84:406:29
1113.84:396:30
1213.94:386:31
1313.94:386:32
1413.94:376:33
1514.04:366:34
1614.04:356:35
1714.04:346:35
1814.04:336:36
1914.14:326:37
2014.14:326:38
2114.14:316:39
2214.24:306:40
2314.24:306:40
2414.24:296:41
2514.24:286:42
2614.24:286:43
2714.34:276:43
2814.34:276:44
2914.34:266:45
3014.34:266:46
3114.44:256:46

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.35 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 5.35 kWh/m² in May across the year — May's 5.35 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.5Bright
275.5Bright
285.5Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in May

Hazard calendar for Sukagawa

In seasonPeak

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

Sukagawa 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 Sukagawa?

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

5.9
Sightseeing
1st-best month of the year
3.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Sukagawa for sightseeing.

What to pack for Sukagawa in May

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

In May, Sukagawa sees daytime highs around 20°C and nights near 10°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Sukagawa in May

The nearest coast averages about 16°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 63 km away) is warmest in August at about 24°C and coldest in March near 12°C.

It's comfortable for a long swim from Jul 1 to Oct 22 — about 3.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May16Cool
Jun19Cool
Jul21Refreshing
Aug24Refreshing
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Sukagawa 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 Sukagawa 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
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Sukagawa 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 Sukagawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 1810 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug12Good
Sep11Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Sukagawa?

Sukagawa sits at 37.3°N, 140.4°E, 261 m above sea level, in Japan. The nearest listed city is Yabuki, 11 km away.

Topography around Sukagawa

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

Within 3 km, the terrain around Sukagawa has only modest variations in elevation — a maximum elevation change of 62 m around an average of 257 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 729 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,029 m.

The land around Sukagawa is covered by artificial surfaces (34%), trees (33%) and cropland (29%) within 3 km, trees (53%) and cropland (29%) within 16 km, and trees (72%) within 80 km.

3 km
62 m
16 km
729 m
80 km
2,029 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Yabuki 11 km · Kōriyama 13 km · Ishikawa 16 km · Miharu 19 km · Shirakawa 21 km · Kumakura 24 km · Funehikimachi-funehiki 25 km · Tamura 25 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 Sukagawa (37.2833°, 140.3833°, elevation 261 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).