Shisō weather in April

In April, Shisō sees average daytime highs of 18°C and overnight lows near 8°C, with 129 mm of rain across 10.5 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 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 30% 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 Shisō's 5th-clearest and 4th-windiest month. For the whole year in context, see Shisō's year-round climate.

Daytime high
18°
7th warmest
Overnight low
6th coldest
Rainfall
129 mm
10.5 wet days
Daylight
12 h 54 min
5:36 AM – 6:28 PM
Cloud cover
61%
5th clearest
Wind
10 km/h
4th windiest
Solar energy
5.3 kWh/m²
Travel score
5.6
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 Shisō reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 13°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)
1155
2156
3166
4166
5166
6166
7167
8177
9177
10177
11177
12178
13188
14188
15188
16188
17189
18189
19199
20199
21199
22199
231910
241910
252010
262010
272010
282011
292011
302011

How April really feels in Shisō

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.

Shisō 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 / 455.71.29.91.4
Feb / 607.3210.71.8
Mar13° / 11511.10.411.73.3
Apr18° / 12910.5012.95.6
May22° / 13°15010.7013.86.5
Jun26° / 18°18813.6014.35.8
Jul29° / 22°22716.4014.14.5
Aug31° / 23°14413.4013.34.3
Sep27° / 19°20412.3012.25.9
Oct22° / 13°1308.4011.16.9
Nov16° / 686.3010.25.4
Dec10° / 556.10.59.72.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44753
54753
64753
74753
84753
94753
104753
114753
124654
134654
144654
154456
164456
174456
184456
194555
204456
214456
224456
234456
244555
254555
264555
274654
284654
294654
304654

Chance of precipitation in April

Any precipitation

Shisō gets around 129 mm of rain over 10.5 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 35% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
434
534
634
734
834
934
1034
1134
1234
1334
1434
1534
1635
1735
1835
1935
2035
2135
2235
2335
2435
2535
2635
2735
2835
2935
3035

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
197300
297300
396400
496400
596400
695500
795500
894510
994510
1094510
1193610
1293610
1393610
1493610
1592620
1691720
1791720
1891720
1990820
2089830
2189830
2288930
23871030
24861130
25841240
26831340
27811441
28811441
29791551
30781651

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 5:57 AM to 5:18 AM, and sunset from 6:16 PM to 6:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:576:16
212.45:556:17
312.45:546:18
412.45:526:19
512.55:516:19
612.55:496:20
712.65:486:21
812.65:476:22
912.65:456:23
1012.75:446:23
1112.75:426:24
1212.75:416:25
1312.85:406:26
1412.85:386:27
1512.85:376:28
1612.95:366:28
1712.95:346:29
1813.05:336:30
1913.05:326:31
2013.05:306:32
2113.15:296:32
2213.15:286:33
2313.15:276:34
2413.25:256:35
2513.25:246:36
2613.25:236:37
2713.35:226:37
2813.35:216:38
2913.35:196:39
3013.45:186:40

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.3 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 5.71 kWh/m² in May across the year — April's 5.3 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Shisō

In seasonPeak

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

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

Shisō's rainy season runs March–October, 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 Shisō?

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

5.6
Sightseeing
5th-best month of the year
1.9
Beach & pool
7th-best month of the year

April is a reasonable time to visit Shisō for sightseeing.

What to pack for Shisō in April

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

In April, Shisō sees daytime highs around 18°C and nights near 8°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Shisō 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 40 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 7 to Nov 13 — 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
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Shisō 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 Shisō peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 13UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Shisō 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 Shisō is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1421 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun17Moderate
Jul14Moderate
Aug12Moderate
Sep12Good
Oct10Good
Nov12Good
Dec11Good
Location & terrain

Where is Shisō?

Shisō sits at 35.0°N, 134.6°E, 215 m above sea level, in Japan. The nearest listed city is Yamazakichō-nakabirose, 2.0 km away.

Topography around Shisō

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

Within 3 km, the terrain around Shisō has significant variations in elevation — a maximum elevation change of 454 m around an average of 186 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,006 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,489 m.

The land around Shisō is covered by trees (70%) within 3 km, trees (84%) within 16 km, and trees (63%) and water (24%) within 80 km.

3 km
454 m
16 km
1,006 m
80 km
1,489 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Yamazakichō-nakabirose 2.0 km · Tatsunochō-tominaga 13 km · Ikaruga 16 km · Tatsuno 17 km · Sayō 19 km · Nishitawara 19 km · Aioi 22 km · Kamigōri 22 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 Shisō (34.9811°, 134.564°, elevation 215 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).