Kaitaichi weather in April

In April, Kaitaichi sees average daytime highs of 17°C and overnight lows near 11°C, with 136 mm of rain across 10 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 Kaitaichi's 4th-clearest and 7th-windiest month. For the whole year in context, see Kaitaichi's year-round climate.

Daytime high
17°
7th warmest
Overnight low
11°
5th coldest
Rainfall
136 mm
10 wet days
Daylight
12 h 54 min
5:44 AM – 6:36 PM
Cloud cover
58%
4th clearest
Wind
12 km/h
7th windiest
Solar energy
5.28 kWh/m²
Travel score
5.2
out of 10

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 Kaitaichi reaches about 17°C in the afternoon and slips back to 11°C overnight — a 5°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
51510
61510
71510
81510
91610
101610
111610
121611
131611
141611
151611
161711
171711
181712
191712
201712
211712
221712
231812
241812
251813
261813
271813
281813
291813
301913

How April really feels in Kaitaichi

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.

Kaitaichi 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 / 5160.6101.9
Feb / 697.70.910.72.1
Mar12° / 1169.90.211.73.4
Apr17° / 11°13610012.85.2
May20° / 16°1559.9013.86.4
Jun23° / 20°22613.2014.36.0
Jul27° / 23°22013.1014.15.8
Aug29° / 25°12010.9013.35.6
Sep26° / 22°16311.1012.26.5
Oct21° / 17°1147.5011.17.1
Nov16° / 12°706.8010.25.6
Dec11° / 616.70.19.73.1

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
45149
55149
65050
75050
85050
94951
104951
114852
124852
134852
144753
154753
164654
174753
184753
194753
204753
214852
224852
234852
244951
254951
264951
274951
285050
295050
305050

Chance of precipitation in April

Any precipitation

Kaitaichi gets around 136 mm of rain over 10 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 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
433
533
633
733
833
934
1034
1134
1234
1335
1435
1535
1635
1735
1835
1935
2034
2134
2233
2333
2432
2532
2631
2731
2830
2930
3030

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19640
29550
39550
49460
59460
69370
79370
89370
99280
109280
119280
129091
139091
1489101
1589101
1688111
1788111
1887121
1986122
2085132
2184142
2282162
2381172
2478193
2577203
2675223
2773234
2872244
2969265
3068275

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 11 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
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 6:05 AM to 5:27 AM, and sunset from 6:24 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:056:24
212.46:036:25
312.46:026:26
412.46:016:26
512.55:596:27
612.55:586:28
712.55:566:29
812.65:556:30
912.65:546:30
1012.65:526:31
1112.75:516:32
1212.75:506:33
1312.85:486:34
1412.85:476:34
1512.85:466:35
1612.95:446:36
1712.95:436:37
1812.95:426:37
1913.05:406:38
2013.05:396:39
2113.05:386:40
2213.15:376:41
2313.15:356:41
2413.15:346:42
2513.25:336:43
2613.25:326:44
2713.25:316:45
2813.35:306:45
2913.35:296:46
3013.35:276:47

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.28 kWh/m².

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.6 kWh/m² in May across the year — April's 5.28 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
65.0Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Kaitaichi

In seasonPeak

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

Kaitaichi 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 Kaitaichi?

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

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

April is a reasonable time to visit Kaitaichi for sightseeing.

What to pack for Kaitaichi in April

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

In April, Kaitaichi 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 Kaitaichi 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 28 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 13 to Nov 17 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Kaitaichi 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 Kaitaichi peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highVery highModerateJul 13UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kaitaichi 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 Kaitaichi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1322 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Kaitaichi?

Kaitaichi sits at 34.4°N, 132.5°E, 6 m above sea level, in Japan. The nearest listed city is Fuchū, 3.0 km away.

Topography around Kaitaichi

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

Within 3 km, the terrain around Kaitaichi has significant variations in elevation — a maximum elevation change of 424 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 772 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,342 m.

The land around Kaitaichi is covered by artificial surfaces (48%) and trees (42%) within 3 km, trees (54%) and artificial surfaces (24%) within 16 km, and trees (65%) and water (28%) within 80 km.

3 km
424 m
16 km
772 m
80 km
1,342 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Fuchū 3.0 km · Kumano 5.0 km · Hiroshima 8.0 km · Gion 10 km · Etajima 15 km · Kure 15 km · Hatsukaichi 18 km · Higashihiroshima 19 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 Kaitaichi (34.3667°, 132.5333°, elevation 6 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).