Hirado weather in April

In April, Hirado sees average daytime highs of 18°C and overnight lows near 13°C, with 142 mm of rain across 10.3 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 19°C by the end. The sky is clear or mostly clear about 33% 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 Hirado's 5th-clearest and 7th-windiest month. For the whole year in context, see Hirado's year-round climate.

Daytime high
18°
7th warmest
Overnight low
13°
5th coldest
Rainfall
142 mm
10.3 wet days
Daylight
12 h 48 min
5:57 AM – 6:47 PM
Cloud cover
59%
5th clearest
Wind
17 km/h
7th windiest
Solar energy
5.11 kWh/m²
Travel score
5.7
out of 10

Hirado is city in Nagasaki Prefecture, Japan.

Density
133/km²
people per km²
Founded
2005

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 19°C by the end.

A typical April day in Hirado reaches about 18°C in the afternoon and slips back to 13°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 21°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)
11611
21611
31611
41611
51612
61712
71712
81712
91712
101712
111712
121712
131713
141813
151813
161813
171813
181813
191813
201814
211914
221914
231914
241914
251914
261914
271915
281915
292015
302015

How April really feels in Hirado

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.

Hirado 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
Jan10° / 679.60.5102.3
Feb11° / 758.50.410.82.7
Mar14° / 12110.5011.74.0
Apr18° / 13°14210.3012.85.7
May22° / 17°1539.8013.76.5
Jun24° / 20°30214.6014.25.8
Jul28° / 24°27314.80145.2
Aug30° / 26°17113.6013.24.8
Sep27° / 23°18311.4012.26.3
Oct23° / 18°1047011.27.4
Nov18° / 13°948.2010.35.9
Dec13° / 738.309.83.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 11% of April, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34555
44456
54555
64456
74456
84456
94456
104357
114357
124357
134357
144357
154456
164456
174555
184555
194654
204555
214654
224654
234753
244654
254753
264753
274555
284555
294555
304555

Chance of precipitation in April

Any precipitation

Hirado gets around 142 mm of rain over 10.3 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 34% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
433
533
633
733
834
934
1034
1134
1235
1335
1435
1535
1635
1735
1835
1935
2035
2134
2234
2334
2434
2534
2634
2734
2833
2933
3033

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1871120
2861220
3851230
4841330
5831430
6821530
7811540
8801640
9801640
10781750
11781750
12771850
13761860
14751960
15742060
16732070
17722170
18712270
19702280
20692380
21662491
226425101
236326101
246127111
255928121
265729131
275629141
285330152
295230162
305031172

Wind in April

Winds average 17 km/h in April.

Across April, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

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 6:17 AM to 5:41 AM, and sunset from 6:36 PM to 6:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:176:36
212.36:166:36
312.46:146:37
412.46:136:38
512.46:126:39
612.56:106:39
712.56:096:40
812.66:086:41
912.66:066:42
1012.66:056:42
1112.76:046:43
1212.76:026:44
1312.76:016:45
1412.86:006:45
1512.85:586:46
1612.85:576:47
1712.95:566:48
1812.95:556:48
1912.95:536:49
2013.05:526:50
2113.05:516:51
2213.05:506:51
2313.15:496:52
2413.15:476:53
2513.15:466:54
2613.25:456:54
2713.25:446:55
2813.25:436:56
2913.25:426:57
3013.35:416:57

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 2.12 kWh/m² to a high of 5.46 kWh/m² in May across the year — April's 5.11 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Hazard calendar for Hirado

In seasonPeak

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

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

Hirado's rainy season runs April–September, 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 Hirado?

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

5.7
Sightseeing
6th-best month of the year
1.8
Beach & pool
7th-best month of the year

April is a reasonable time to visit Hirado for sightseeing.

What to pack for Hirado in April

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

In April, Hirado sees daytime highs around 18°C and nights near 13°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Hirado in April

The nearest coast averages about 16°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 August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 4 to Nov 24 — about 5.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Hirado 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 Hirado peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 18UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hirado 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 Hirado is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateApr 1324 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May21Moderate
Jun17Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct11Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Hirado?

Hirado sits at 33.4°N, 129.6°E, 5 m above sea level, in Japan. The nearest listed city is Matsuura, 14 km away.

Topography around Hirado

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

Within 3 km, the terrain around Hirado has only modest variations in elevation — a maximum elevation change of 243 m around an average of 33 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 542 m; within 80 km, large variations in elevation — a maximum elevation change of 1,046 m.

The land around Hirado is covered by water (46%) and trees (43%) within 3 km, water (62%) and trees (33%) within 16 km, and water (73%) and trees (21%) within 80 km.

3 km
243 m
16 km
542 m
80 km
1,046 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Matsuura 14 km · Sasebo 27 km · Imarichō-kō 32 km · Arita 38 km · Karatsu 40 km · Saikai 44 km · Takeo 48 km · Iki 49 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 Hirado (33.3685°, 129.5525°, elevation 5 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).