Ishige weather in April

In April, Ishige sees average daytime highs of 18°C and overnight lows near 10°C, with 106 mm of precipitation across 11.3 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 8th-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 31% 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 Ishige's 7th-clearest and 1st-windiest month. For the whole year in context, see Ishige's year-round climate.

Daytime high
18°
7th warmest
Overnight low
10°
6th coldest
Precipitation
106 mm
11.3 wet days
Daylight
12 h 54 min
5:13 AM – 6:08 PM
Cloud cover
61%
7th clearest
Wind
12 km/h
1st windiest
Solar energy
4.87 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 Ishige reaches about 18°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 23°C. Set against its neighbours, April runs about 5°C warmer than March and about 5°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1167
2167
3167
4167
5167
6178
7178
8178
9178
10178
11179
12189
13189
14189
15189
161810
171910
181910
191910
201910
211911
221911
232011
242011
252011
262012
272012
282012
292112
302112

How April really feels in Ishige

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.

Ishige weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 606.51.29.82.0
Feb10° / 587.21.710.62.3
Mar13° / 10611.60.911.73.7
Apr18° / 10°10611.30.112.95.6
May23° / 15°13112.4013.96.3
Jun26° / 19°15414.9014.45.5
Jul29° / 23°16315.4014.24.5
Aug31° / 24°12313.6013.44.2
Sep27° / 20°16713.9012.25.5
Oct21° / 14°18612.5011.16.2
Nov16° / 859.1010.15.3
Dec11° / 566.80.19.63.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25149
35050
45050
55050
64951
74951
84852
94852
104753
114654
124456
134456
144456
154357
164357
174258
184258
194258
204258
214258
224258
234357
244357
254258
264357
274357
284357
294456
304456

Chance of precipitation in April

Any precipitation

Ishige gets around 106 mm of rain and snow over 11.3 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 38% and peaks near 39% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
539
639
739
839
939
1039
1139
1239
1339
1439
1539
1639
1739
1839
1938
2038
2137
2237
2337
2437
2537
2637
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 89% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
198200
298200
398200
497300
597300
697300
796400
896400
996400
1094510
1194510
1293610
1393610
1492710
1592710
1691810
1790820
1889920
19871021
20861121
21851221
22841321
23821431
24811531
25801631
26771841
27761941
28742051
29722161
30712261

Wind in April

Winds average 12 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 12 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
1012calm
1112calm
1212calm
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012calm

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 5:35 AM to 4:55 AM, and sunset from 5:55 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:355:55
212.45:335:56
312.45:325:57
412.55:305:58
512.55:295:58
612.55:275:59
712.65:266:00
812.65:246:01
912.75:236:02
1012.75:216:03
1112.75:206:04
1212.85:186:04
1312.85:176:05
1412.85:166:06
1512.95:146:07
1612.95:136:08
1713.05:116:09
1813.05:106:10
1913.05:096:10
2013.15:076:11
2113.15:066:12
2213.15:056:13
2313.25:046:14
2413.25:026:15
2513.25:016:16
2613.35:006:17
2713.34:596:17
2813.34:576:18
2913.44:566:19
3013.44:556:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.87 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 5.12 kWh/m² in May across the year — April's 4.87 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.7Bright
54.7Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in April

Hazard calendar for Ishige

In seasonPeak

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

Ishige 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 Ishige?

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

5.6
Sightseeing
3rd-best month of the year
2.0
Beach & pool
7th-best month of the year

April is a reasonable time to visit Ishige for sightseeing.

What to pack for Ishige in April

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

In April, Ishige sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Ishige 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 55 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ishige in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ishige peaks around July 21 at about 10 (very high) — 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 highModerateJul 21UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ishige 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 Ishige is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2425 µg/m³Dec 1914 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar25Moderate
Apr25Moderate
May24Moderate
Jun19Moderate
Jul16Moderate
Aug15Moderate
Sep15Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Ishige?

Ishige sits at 36.1°N, 140.0°E, 19 m above sea level, in Japan. The nearest listed city is Shimo-tsuma, 7.0 km away.

Topography around Ishige

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

Within 3 km, the terrain around Ishige has only modest variations in elevation — a maximum elevation change of 31 m around an average of 18 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 454 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,828 m.

The land around Ishige is covered by cropland (52%) and artificial surfaces (28%) within 3 km, cropland (45%), artificial surfaces (25%) and trees (22%) within 16 km, and trees (36%), artificial surfaces (27%) and cropland (22%) within 80 km.

3 km
31 m
16 km
454 m
80 km
1,828 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Shimo-tsuma 7.0 km · Jōsō 9.0 km · Iwai 10 km · Yachiyo 10 km · Bandō 10 km · Mitsukaidō 11 km · Tsukuba 14 km · Sakai 15 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 Ishige (36.1167°, 139.9667°, elevation 19 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).