Kasumi weather in April

In April, Kasumi sees average daytime highs of 15°C and overnight lows near 10°C, with 116 mm of rain across 11.5 wet days and about 12.9 hours of daylight. It is the 8th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 17°C by the end. The sky is clear or mostly clear about 33% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Kasumi's 3rd-clearest and 7th-windiest month. For the whole year in context, see Kasumi's year-round climate.

Daytime high
15°
8th warmest
Overnight low
10°
5th coldest
Rainfall
116 mm
11.5 wet days
Daylight
12 h 54 min
5:35 AM – 6:29 PM
Cloud cover
59%
3rd clearest
Wind
17 km/h
7th windiest
Solar energy
5.17 kWh/m²
Travel score
4.2
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 17°C by the end.

A typical April day in Kasumi reaches about 15°C in the afternoon and slips back to 10°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 18°C. Set against its neighbours, April runs about 4°C warmer than March and about 4°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1128
2138
3138
4139
5139
6139
7139
8139
9149
10149
111410
121410
131410
141410
151510
161510
171511
181511
191511
201511
211611
221611
231612
241612
251612
261612
271612
281712
291712
301713

How April really feels in Kasumi

Once humidity and wind are folded in, April 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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Kasumi weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 20023.97.19.90.8
Feb / 13517.85.610.70.9
Mar10° / 14215.71.811.72.1
Apr15° / 10°11611.5012.94.2
May19° / 15°14311.5013.95.9
Jun22° / 19°15612.6014.45.9
Jul26° / 23°18614.8014.25.8
Aug28° / 25°13212.5013.35.7
Sep25° / 22°20714.3012.26.0
Oct20° / 17°13912.3011.16.0
Nov15° / 12°13516010.14.0
Dec10° / 20722.43.19.61.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54654
64753
74654
84654
94753
104753
114753
124654
134654
144654
154654
164555
174456
184456
194555
204555
214654
224456
234555
244654
254654
264753
274852
284852
294852
304951

Chance of precipitation in April

Any precipitation

Kasumi gets around 116 mm of rain over 11.5 wet days in April, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
240
340
440
540
640
740
839
939
1039
1139
1239
1339
1439
1539
1638
1738
1838
1938
2038
2137
2237
2337
2437
2537
2636
2736
2836
2936
3036

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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79910
89910
99820
109820
119820
129820
139730
149730
159541
169541
179451
189451
199361
209271
219271
229181
2389101
2488111
2587121
2685141
2783152
2881172
2980182
3078202

Wind in April

Winds average 17 km/h in April.

Across April, daily wind ranges from about 16 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 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 5:56 AM to 5:17 AM, and sunset from 6:16 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:566:16
212.45:556:17
312.45:536:18
412.55:526:19
512.55:506:20
612.55:496:20
712.65:476:21
812.65:466:22
912.65:446:23
1012.75:436:24
1112.75:426:25
1212.85:406:25
1312.85:396:26
1412.85:376:27
1512.95:366:28
1612.95:356:29
1712.95:336:30
1813.05:326:30
1913.05:316:31
2013.05:296:32
2113.15:286:33
2213.15:276:34
2313.25:256:35
2413.25:246:35
2513.25:236:36
2613.35:226:37
2713.35:216:38
2813.35:196:39
2913.45:186:40
3013.45:176:41

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.17 kWh/m².

For context, solar energy here swings from a low near 1.99 kWh/m² to a high of 5.59 kWh/m² in May across the year — April's 5.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
Planning a trip in April

Hazard calendar for Kasumi

In seasonPeak

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

Kasumi 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 April a good time to visit Kasumi?

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

4.2
Sightseeing
7th-best month of the year
0.3
Beach & pool
8th-best month of the year

April is a reasonable time to visit Kasumi for sightseeing.

What to pack for Kasumi in April

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

In April, Kasumi sees daytime highs around 15°C and nights near 10°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Kasumi 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 offshore is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 13 to Nov 7 — about 4.9 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Kasumi 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 Kasumi peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highVery highModerateJul 16UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kasumi 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 Kasumi is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (September, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1221 µg/m³Sep 1710 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar20Moderate
Apr21Moderate
May18Moderate
Jun14Moderate
Jul12Good
Aug10Good
Sep10Good
Oct10Good
Nov11Good
Dec12Good
Location & terrain

Where is Kasumi?

Kasumi sits at 35.6°N, 134.6°E, 46 m above sea level, in Japan. The nearest listed city is Toyooka, 20 km away.

Topography around Kasumi

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

Within 3 km, the terrain around Kasumi has significant variations in elevation — a maximum elevation change of 375 m around an average of 86 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 955 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,487 m.

The land around Kasumi is covered by trees (70%) within 3 km, trees (57%) and water (40%) within 16 km, and trees (56%) and water (38%) within 80 km.

3 km
375 m
16 km
955 m
80 km
1,487 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Toyooka 20 km · Yabu 28 km · Kyōtango 37 km · Tottori-shi 39 km · Wadayama 41 km · Kōge 42 km · Yotsutsuji 44 km · Miyazu 52 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 Kasumi (35.6333°, 134.6333°, elevation 46 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).