Matsubase weather in April

In April, Matsubase sees average daytime highs of 18°C and overnight lows near 11°C, with 154 mm of rain across 12.1 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 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 32% 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 12 min by month's end. Set against the rest of the year, April is Matsubase's 6th-clearest and 5th-windiest month. For the whole year in context, see Matsubase's year-round climate.

Daytime high
18°
7th warmest
Overnight low
11°
6th coldest
Rainfall
154 mm
12.1 wet days
Daylight
12 h 48 min
5:53 AM – 6:42 PM
Cloud cover
61%
6th clearest
Wind
8 km/h
5th windiest
Solar energy
4.92 kWh/m²
Travel score
5.5
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 20°C by the end.

A typical April day in Matsubase reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°C. Set against its neighbours, April runs about 5°C warmer than March and about 4°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1169
2169
3169
4179
5179
61710
71710
81710
91710
101810
111810
121811
131811
141811
151811
161811
171911
181911
191912
201912
211912
221912
232012
242012
252012
262013
272013
282013
292013
302113

How April really feels in Matsubase

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.

Matsubase 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 / 7910.61.810.11.8
Feb10° / 9610.21.210.82.3
Mar14° / 14213.10.211.83.8
Apr18° / 11°15412.1012.85.5
May22° / 15°17812013.76.4
Jun25° / 20°40317014.15.4
Jul29° / 23°30116.3013.94.8
Aug30° / 24°13513013.24.7
Sep27° / 21°15611.8012.26.1
Oct23° / 15°988.3011.27.1
Nov17° / 10°938.8010.35.6
Dec11° / 84100.99.92.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34456
44456
54456
64555
74456
84456
94456
104456
114357
124357
134258
144258
154258
164258
174258
184258
194357
204357
214456
224456
234357
244456
254456
264456
274456
284456
294456
304357

Chance of precipitation in April

Any precipitation

Matsubase gets around 154 mm of rain over 12.1 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 41% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
340
440
540
640
740
840
941
1041
1141
1242
1342
1442
1543
1643
1743
1842
1942
2042
2142
2241
2341
2441
2541
2641
2740
2840
2940
3040

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
191720
289830
389830
488930
5861040
6861040
7851140
8851140
9841240
10831340
11811450
12811450
13801550
14791650
15781750
16781750
17771850
18761860
19751960
20741961
21732061
22722071
23712171
24692281
25682291
266523102
276523102
286324112
296224122
305925133

Wind in April

Winds average 8 km/h in April.

Across April, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 54 minutes over April. Sunrise moves from 6:13 AM to 5:37 AM, and sunset from 6:31 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:136:31
212.36:126:32
312.46:106:32
412.46:096:33
512.46:086:34
612.56:066:35
712.56:056:35
812.56:046:36
912.66:026:37
1012.66:016:37
1112.66:006:38
1212.75:586:39
1312.75:576:40
1412.75:566:40
1512.85:556:41
1612.85:536:42
1712.85:526:42
1812.95:516:43
1912.95:506:44
2012.95:496:45
2113.05:476:45
2213.05:466:46
2313.05:456:47
2413.15:446:48
2513.15:436:48
2613.15:426:49
2713.25:416:50
2813.25:406:50
2913.25:386:51
3013.25:376:52

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.92 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.15 kWh/m² in May across the year — April's 4.92 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.9Bright
164.9Bright
174.9Bright
184.9Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in April

Hazard calendar for Matsubase

In seasonPeak

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

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

Matsubase's rainy season runs June–July, 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 Matsubase?

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

5.5
Sightseeing
5th-best month of the year
2.1
Beach & pool
7th-best month of the year

April is a reasonable time to visit Matsubase for sightseeing.

What to pack for Matsubase in April

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

In April, Matsubase sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Matsubase in April

The nearest coast averages about 16°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 25 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 May 27 to Nov 13 — about 5.6 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Matsubase in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Matsubase peaks around June 22 at about 10 (extreme) — 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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 22UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Matsubase 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 Matsubase is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2325 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr25Moderate
May23Moderate
Jun19Moderate
Jul13Moderate
Aug15Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Matsubase?

Matsubase sits at 32.6°N, 130.7°E, 4 m above sea level, in Japan. The nearest listed city is Uki, 3.0 km away.

Topography around Matsubase

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

Within 3 km, the terrain around Matsubase has only modest variations in elevation — a maximum elevation change of 169 m around an average of 17 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 861 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,757 m.

The land around Matsubase is covered by cropland (30%), artificial surfaces (30%) and trees (27%) within 3 km, trees (38%), cropland (23%) and water (20%) within 16 km, and trees (64%) and water (20%) within 80 km.

3 km
169 m
16 km
861 m
80 km
1,757 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Uki 3.0 km · Uto 4.0 km · Kotō 16 km · Mifune 16 km · Shimada 17 km · Honmachi 17 km · Kumamoto 17 km · Ōyanomachi-noboritate 23 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 Matsubase (32.65°, 130.6667°, elevation 4 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).