Kudamatsu weather in April

In April, Kudamatsu sees average daytime highs of 17°C and overnight lows near 11°C, with 148 mm of rain across 10.2 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 18°C by the end. The sky is clear or mostly clear about 36% 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 18 min by month's end. Set against the rest of the year, April is Kudamatsu's 3rd-clearest and 6th-windiest month. For the whole year in context, see Kudamatsu's year-round climate.

Daytime high
17°
7th warmest
Overnight low
11°
5th coldest
Rainfall
148 mm
10.2 wet days
Daylight
12 h 48 min
5:47 AM – 6:38 PM
Cloud cover
58%
3rd clearest
Wind
14 km/h
6th windiest
Solar energy
5.22 kWh/m²
Travel score
5.2
out of 10

Kudamatsu is city in Yamaguchi Prefecture, Japan.

Density
625/km²
people per km²
Founded
1939

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 15°C in the first days to 18°C by the end.

A typical April day in Kudamatsu reaches about 17°C in the afternoon and slips back to 11°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°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)
1149
2159
3159
4159
5159
61510
71510
81510
91610
101610
111610
121610
131611
141611
151611
161711
171711
181711
191711
201712
211712
221712
231812
241812
251812
261813
271813
281813
291813
301913

How April really feels in Kudamatsu

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.

Kudamatsu weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 629.31.3101.7
Feb / 769.51.110.72.0
Mar12° / 12410.70.211.73.3
Apr17° / 11°14810.2012.85.2
May21° / 15°16910.1013.76.3
Jun24° / 20°26414.3014.25.9
Jul27° / 24°25914.70145.5
Aug29° / 25°14712.7013.35.2
Sep26° / 22°16911.5012.26.4
Oct22° / 16°1137.7011.17.1
Nov16° / 11°788.1010.25.5
Dec11° / 699.80.39.82.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% 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 51%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25149
35149
45050
55050
65050
74951
84951
94852
104852
114852
124753
134753
144753
154753
164753
174753
184753
194753
204753
214753
224852
234852
244852
254951
264951
274951
284951
295050
305050

Chance of precipitation in April

Any precipitation

Kudamatsu gets around 148 mm of rain over 10.2 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
134
234
334
434
534
635
735
835
935
1035
1135
1235
1335
1436
1536
1636
1736
1835
1935
2035
2134
2234
2334
2434
2533
2633
2733
2832
2932
3032

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

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
195500
295500
394600
494600
593700
692710
792710
891810
991810
1091810
1190910
1290910
13891010
14891010
15871120
16871120
17861220
18861220
19851320
20841420
21821530
22811630
23801730
24781930
25762040
26742240
27722350
28692461
29692461
30672571

Wind in April

Winds average 14 km/h in April.

Across April, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 6:08 AM to 5:31 AM, and sunset from 6:27 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:086:27
212.46:066:27
312.46:056:28
412.46:036:29
512.56:026:30
612.56:016:31
712.55:596:31
812.65:586:32
912.65:576:33
1012.65:556:34
1112.75:546:34
1212.75:536:35
1312.75:516:36
1412.85:506:37
1512.85:496:37
1612.85:476:38
1712.95:466:39
1812.95:456:40
1913.05:446:41
2013.05:426:41
2113.05:416:42
2213.15:406:43
2313.15:396:44
2413.15:376:44
2513.15:366:45
2613.25:356:46
2713.25:346:47
2813.25:336:48
2913.35:326:48
3013.35:316:49

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.22 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 5.52 kWh/m² in May across the year — April's 5.22 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
Planning a trip in April

Hazard calendar for Kudamatsu

In seasonPeak

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

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

Kudamatsu's rainy season runs March–September, when most of the year's rain falls.

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

Is April a good time to visit Kudamatsu?

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

5.2
Sightseeing
7th-best month of the year
1.1
Beach & pool
8th-best month of the year

April is a reasonable time to visit Kudamatsu for sightseeing.

What to pack for Kudamatsu in April

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

In April, Kudamatsu sees daytime highs around 17°C and nights near 11°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Kudamatsu in April

The nearest coast averages about 15°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 15 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 9 to Nov 16 — about 5.3 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Kudamatsu 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 Kudamatsu peaks around June 23 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 23UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kudamatsu 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 Kudamatsu is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateApr 1323 µg/m³Oct 1612 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar23Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug16Moderate
Sep13Moderate
Oct11Good
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Kudamatsu?

Kudamatsu sits at 34.0°N, 131.9°E, 13 m above sea level, in Japan. The nearest listed city is Tokuyama, 6.0 km away.

Topography around Kudamatsu

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

Within 3 km, the terrain around Kudamatsu has significant variations in elevation — a maximum elevation change of 270 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 694 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Kudamatsu is covered by artificial surfaces (36%), trees (33%) and water (27%) within 3 km, trees (48%) and water (41%) within 16 km, and water (49%) and trees (44%) within 80 km.

3 km
270 m
16 km
694 m
80 km
1,369 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Tokuyama 6.0 km · Shūnan 9.0 km · Hikari 10 km · Yanai 24 km · Hōfu 28 km · Iwakuni 37 km · Ōtake 39 km · Yamaguchi 42 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 Kudamatsu (34.0096°, 131.8664°, elevation 13 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).