Kumakura weather in April

In April, Kumakura sees average daytime highs of 14°C and overnight lows near 5°C, with 100 mm of precipitation across 11.5 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 17°C by the end. The sky is clear or mostly clear about 28% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 30 min by month's end. Set against the rest of the year, April is Kumakura's 4th-clearest and 4th-windiest month. For the whole year in context, see Kumakura's year-round climate.

Daytime high
14°
7th warmest
Overnight low
6th coldest
Precipitation
100 mm
11.5 wet days
Daylight
13 hours
5:11 AM – 6:08 PM
Cloud cover
62%
4th clearest
Wind
11 km/h
4th windiest
Solar energy
5.01 kWh/m²
Travel score
4.0
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 12°C in the first days to 17°C by the end.

A typical April day in Kumakura reaches about 14°C in the afternoon and slips back to 5°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 20°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°20°151015202530
Avg high (°C)Avg low (°C)
1112
2112
3122
4123
5123
6123
7123
8133
9133
10134
11134
12144
13144
14144
15145
16145
17155
18155
19155
20156
21156
22166
23166
24166
25167
26167
27177
28177
29177
30178

How April really feels in Kumakura

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 7 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
7
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Kumakura weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°579.19.29.70.0
Feb / -3°498.27.410.60.0
Mar / -0°8911.65.811.71.3
Apr14° / 10011.51.412.94.0
May20° / 10°11312.10145.8
Jun23° / 15°13414.1014.55.7
Jul26° / 19°18917.3014.35.3
Aug27° / 20°13914.6013.45.4
Sep23° / 17°17214.1012.35.8
Oct18° / 10°14711.30115.3
Nov12° / 728.70.7103.1
Dec / -1°539.65.89.50.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24753
34753
44753
54753
64753
74654
84654
94654
104654
114654
124654
134555
144555
154357
164456
174456
184456
194357
204456
214357
224357
234357
244357
254357
264357
274357
284456
294456
304357

Chance of precipitation in April

Any precipitationSnow

Kumakura gets around 100 mm of rain and snow over 11.5 wet days in April. 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 41% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
14111
24010
34010
4409
5408
6408
7407
8407
9407
10406
11406
12406
13405
14405
15405
16405
17404
18404
19404
20394
21393
22383
23383
24382
25372
26372
27371
28361
29361
30361

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
510000
610000
710000
810000
910000
1010000
1110000
1210000
1310000
1410000
1510000
1610000
179910
189910
199811
209811
219811
229811
239811
249811
259811
269721
279721
289721
299631
309631

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:33 AM to 4:53 AM, and sunset from 5:55 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:335:55
212.45:325:56
312.45:305:56
412.55:295:57
512.55:275:58
612.65:265:59
712.65:246:00
812.65:236:01
912.75:216:02
1012.75:206:03
1112.85:186:04
1212.85:176:05
1312.85:156:05
1412.95:146:06
1512.95:126:07
1613.05:116:08
1713.05:106:09
1813.05:086:10
1913.15:076:11
2013.15:056:12
2113.15:046:13
2213.25:036:14
2313.25:016:14
2413.35:006:15
2513.34:596:16
2613.34:576:17
2713.44:566:18
2813.44:556:19
2913.44:546:20
3013.54:536:21

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.01 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.3 kWh/m² in May across the year — April's 5.01 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.3Bright
Planning a trip in April

Is April a good time to visit Kumakura?

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

4.0
Sightseeing
7th-best month of the year
0.3
Beach & pool
7th-best month of the year

April is a reasonable time to visit Kumakura for sightseeing.

What to pack for Kumakura in April

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

In April, Kumakura sees daytime highs around 14°C and nights near 5°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Kumakura in April

The nearest coast averages about 14°C in April — 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 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 Kumakura in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kumakura peaks around July 20 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 20UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Kumakura in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Kumakura 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 Kumakura?

Kumakura sits at 37.2°N, 140.2°E, 397 m above sea level, in Japan. The nearest listed city is Shirakawa, 9.0 km away.

Topography around Kumakura

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

Within 3 km, the terrain around Kumakura has only modest variations in elevation — a maximum elevation change of 167 m around an average of 420 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,439 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,550 m.

The land around Kumakura is covered by trees (47%) and cropland (31%) within 3 km, trees (75%) within 16 km, and trees (79%) within 80 km.

3 km
167 m
16 km
1,439 m
80 km
2,550 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Shirakawa 9.0 km · Nasu 14 km · Yabuki 14 km · Nasushiobara 22 km · Kuroiso 23 km · Sukagawa 24 km · Ishikawa 25 km · Kōriyama 33 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 Kumakura (37.1525°, 140.1685°, elevation 397 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).