Hatsukaichi weather in April

In April, Hatsukaichi sees average daytime highs of 18°C and overnight lows near 10°C, with 138 mm of rain across 9.8 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 6th-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 35% 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 Hatsukaichi's 4th-clearest and 6th-windiest month. For the whole year in context, see Hatsukaichi's year-round climate.

Daytime high
18°
7th warmest
Overnight low
10°
6th coldest
Rainfall
138 mm
9.8 wet days
Daylight
12 h 54 min
5:45 AM – 6:37 PM
Cloud cover
59%
4th clearest
Wind
9 km/h
6th windiest
Solar energy
5.24 kWh/m²
Travel score
5.8
out of 10

Hatsukaichi is city in Hiroshima prefecture, Japan.

Density
233/km²
people per km²
Founded
1988

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Hatsukaichi reaches about 18°C in the afternoon and slips back to 10°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°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)
1157
2167
3168
4168
5168
6168
7178
8179
9179
10179
11179
12179
13189
141810
151810
161810
171810
181810
191911
201911
211911
221911
231911
241911
251912
262012
272012
282012
292012
302012

How April really feels in Hatsukaichi

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.

Hatsukaichi weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 506.21101.8
Feb10° / 677.81.510.72.1
Mar13° / 11610.10.511.73.7
Apr18° / 10°1389.8012.85.8
May22° / 15°15810.3013.86.6
Jun25° / 19°23413.9014.35.9
Jul29° / 23°25515.2014.14.8
Aug30° / 24°16914.4013.34.5
Sep27° / 21°18511.7012.26.1
Oct22° / 15°1168011.17.1
Nov16° / 727.2010.25.6
Dec11° / 606.70.39.73.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% 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 51%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
25050
35050
45050
54951
64951
75050
84951
94951
104852
114852
124753
134753
144852
154753
164753
174753
184753
194852
204852
214852
224852
234852
244852
254951
264951
274951
284951
295050
305050

Chance of precipitation in April

Any precipitation

Hatsukaichi gets around 138 mm of rain over 9.8 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 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
133
233
333
433
533
633
733
833
933
1033
1133
1234
1334
1434
1534
1634
1734
1834
1933
2033
2133
2232
2332
2431
2531
2631
2730
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 88% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196400
296400
395500
494510
593610
693610
793610
892710
992710
1092710
1192710
1292710
1391810
1491810
1591810
1689920
1789920
1889920
19881020
20881020
21871120
22851230
23831331
24821431
25801631
26781741
27771841
28751951
29742051
30722161

Wind in April

Winds average 9 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
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
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 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 6:06 AM to 5:28 AM, and sunset from 6:25 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:066:25
212.46:046:26
312.46:036:27
412.46:016:27
512.56:006:28
612.55:596:29
712.55:576:30
812.65:566:30
912.65:556:31
1012.65:536:32
1112.75:526:33
1212.75:506:34
1312.85:496:34
1412.85:486:35
1512.85:466:36
1612.95:456:37
1712.95:446:37
1812.95:436:38
1913.05:416:39
2013.05:406:40
2113.05:396:41
2213.15:386:41
2313.15:366:42
2413.15:356:43
2513.25:346:44
2613.25:336:45
2713.25:326:45
2813.35:306:46
2913.35:296:47
3013.35:286:48

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.24 kWh/m².

For context, solar energy here swings from a low near 2.27 kWh/m² to a high of 5.55 kWh/m² in May across the year — April's 5.24 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Hatsukaichi

In seasonPeak

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

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

Hatsukaichi'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 Hatsukaichi?

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

5.8
Sightseeing
5th-best month of the year
1.9
Beach & pool
7th-best month of the year

April is a reasonable time to visit Hatsukaichi for sightseeing.

What to pack for Hatsukaichi in April

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

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

rain gearsun protection

Sea temperature near Hatsukaichi 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 25 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 Hatsukaichi 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 Hatsukaichi 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 Hatsukaichi 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 Hatsukaichi is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1022 µg/m³Oct 1310 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr22Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Moderate
Sep11Good
Oct10Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Hatsukaichi?

Hatsukaichi sits at 34.4°N, 132.3°E, 4 m above sea level, in Japan. The nearest listed city is Miyajima, 6.0 km away.

Topography around Hatsukaichi

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

Within 3 km, the terrain around Hatsukaichi has significant variations in elevation — a maximum elevation change of 352 m around an average of 34 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,036 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,327 m.

The land around Hatsukaichi is covered by artificial surfaces (44%), water (33%) and trees (21%) within 3 km, trees (53%) and water (29%) within 16 km, and trees (61%) and water (32%) within 80 km.

3 km
352 m
16 km
1,036 m
80 km
1,327 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Miyajima 6.0 km · Ōno-hara 10 km · Hiroshima 12 km · Gion 15 km · Fuchū 17 km · Etajima 18 km · Kaitaichi 18 km · Ōtake 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 Hatsukaichi (34.35°, 132.3333°, 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).