Ishigaki weather in April

In April, Ishigaki sees average daytime highs of 24°C and overnight lows near 22°C, with 148 mm of rain across 13.1 wet days and about 12.6 hours of daylight. It is the 8th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 25°C by the end. The sky is clear or mostly clear about 25% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of April to 12 h 54 min by month's end. Set against the rest of the year, April is Ishigaki's 6th-clearest and 10th-windiest month. For the whole year in context, see Ishigaki's year-round climate.

Daytime high
24°
8th warmest
Overnight low
22°
5th coldest
Rainfall
148 mm
13.1 wet days
Daylight
12 h 36 min
6:27 AM – 7:01 PM
Cloud cover
64%
6th clearest
Wind
24 km/h
10th windiest
Solar energy
5.11 kWh/m²
Travel score
6.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 25°C by the end.

A typical April day in Ishigaki reaches about 24°C in the afternoon and slips back to 22°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 26°C. Set against its neighbours, April runs about 2°C warmer than March and about 2°C cooler than May.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12321
22321
32321
42321
52322
62322
72322
82322
92322
102422
112422
122422
132422
142422
152422
162422
172423
182423
192423
202423
212423
222423
232523
242523
252523
262523
272523
282523
292523
302524

How April really feels in Ishigaki

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.

Ishigaki weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 19°15516.810.75.2
Feb21° / 19°11213.911.25.4
Mar22° / 20°12213.911.85.9
Apr24° / 22°14813.112.66.3
May26° / 25°16514.413.25.9
Jun28° / 27°16114.213.55.2
Jul29° / 28°1281313.45.2
Aug29° / 27°23216.612.84.8
Sep28° / 27°22315.812.25.3
Oct26° / 25°14013.711.46.1
Nov25° / 23°14514.110.86.2
Dec22° / 20°15415.310.55.7

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 58%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
24060
34159
44258
54159
64159
74258
84357
94357
104456
114456
124654
134654
144555
154555
164555
174555
184456
194456
204456
214357
224258
234258
244258
254159
264060
274060
283961
293961
303961

Chance of precipitation in April

Any precipitation

Ishigaki gets around 148 mm of rain over 13.1 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 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
141
242
342
442
542
642
742
842
942
1042
1141
1241
1341
1441
1542
1642
1742
1843
1943
2043
2144
2244
2344
2445
2545
2645
2745
2845
2945
3045

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the oppressive band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
112152331190
212152331190
311152331200
410142431210
59142431220
68132431230
77132431240
87132431260
97122331270
106112331290
116112330300
125102230320
13592130341
14592129351
15492029371
16481929382
17481828402
18481728403
19481628413
20381628424
21381527425
22371427435
23371427436
24271327447
25271326438
26271326439
272713254310
282713254311
291713254212
301713244213

Wind in April

Winds average 24 km/h in April.

Across April, daily wind ranges from about 22 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
125breezy
225breezy
324breezy
424breezy
524breezy
624breezy
724breezy
824breezy
924breezy
1024breezy
1124breezy
1224breezy
1324breezy
1424breezy
1523breezy
1623breezy
1723breezy
1823breezy
1923breezy
2023breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3022breezy

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 12 min at the start of April to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over April. Sunrise moves from 6:42 AM to 6:14 AM, and sunset from 6:54 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:426:54
212.26:416:55
312.36:406:55
412.36:396:56
512.36:386:56
612.36:366:56
712.46:356:57
812.46:346:57
912.46:336:58
1012.46:326:58
1112.56:316:59
1212.56:306:59
1312.56:296:59
1412.56:287:00
1512.56:287:00
1612.66:277:01
1712.66:267:01
1812.66:257:01
1912.66:247:02
2012.76:237:02
2112.76:227:03
2212.76:217:03
2312.76:207:04
2412.76:197:04
2512.86:187:05
2612.86:187:05
2712.86:177:06
2812.86:167:06
2912.96:157:07
3012.96:147:07

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.11 kWh/m².

For context, solar energy here swings from a low near 2.42 kWh/m² to a high of 6.37 kWh/m² in July across the year — April's 5.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
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
255.3Bright
265.3Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Hazard calendar for Ishigaki

In seasonPeak

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

Ishigaki 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 Ishigaki?

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

6.3
Sightseeing
1st-best month of the year
5.3
Beach & pool
8th-best month of the year

April is a reasonable time to visit Ishigaki for sightseeing.

What to pack for Ishigaki in April

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

In April, Ishigaki sees daytime highs around 24°C and nights near 22°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 13 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Ishigaki in April

The nearest coast averages about 25°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 July at about 29°C and coldest in February near 23°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar23Refreshing
Apr25Warm
May26Warm
Jun28Tropical
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov26Warm
Dec25Warm

UV index in Ishigaki in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ishigaki peaks around June 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highVery highExtremeVery highHighJun 20UV 12Dec 20UV 5
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Extreme
Apr9Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct8Very high
Nov7High
Dec5High

Air quality in Ishigaki 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 Ishigaki is worst in March — around 15 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (June, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1815 µg/m³Jun 207 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar15Moderate
Apr13Moderate
May9Good
Jun7Good
Jul8Good
Aug9Good
Sep8Good
Oct9Good
Nov10Good
Dec11Good
Location & terrain

Where is Ishigaki?

Ishigaki sits at 24.3°N, 124.2°E, 18 m above sea level, in Japan. The nearest listed city is Hirara, 127 km away.

Topography around Ishigaki

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

Within 3 km, the terrain around Ishigaki has only modest variations in elevation — a maximum elevation change of 217 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 528 m; within 80 km, significant variations in elevation — a maximum elevation change of 517 m.

The land around Ishigaki is covered by water (37%), artificial surfaces (22%) and trees (20%) within 3 km, water (78%) within 16 km, and water (96%) within 80 km.

3 km
217 m
16 km
528 m
80 km
517 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Hirara 127 km · Miyakojima 127 km · Yilan 247 km · Jiufen 249 km · Xiulin 258 km · Keelung 259 km · Hualien 262 km · Xizhi 265 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 Ishigaki (24.3448°, 124.1572°, elevation 18 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).