Tsukumiura weather in April

In April, Tsukumiura sees average daytime highs of 20°C and overnight lows near 11°C, with 117 mm of rain across 10.2 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 22°C by the end. The sky is clear or mostly clear about 34% 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 Tsukumiura's 7th-clearest and 5th-windiest month. For the whole year in context, see Tsukumiura's year-round climate.

Daytime high
20°
7th warmest
Overnight low
11°
6th coldest
Rainfall
117 mm
10.2 wet days
Daylight
12 h 48 min
5:48 AM – 6:37 PM
Cloud cover
59%
7th clearest
Wind
9 km/h
5th windiest
Solar energy
5.27 kWh/m²
Travel score
6.2
out of 10

Tsukumiura is city in Ōita Prefecture, Japan.

Density
272/km²
people per km²
Founded
1951

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 18°C in the first days to 22°C by the end.

A typical April day in Tsukumiura reaches about 20°C in the afternoon and slips back to 11°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, April runs about 5°C warmer than March and about 4°C cooler than May.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
1188
2188
3188
4189
5189
6199
7199
8199
9199
101910
111910
122010
132010
142010
152010
162011
172011
182111
192111
202111
212111
222112
232112
242112
252212
262212
272212
282213
292213
302213

How April really feels in Tsukumiura

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.

Tsukumiura weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 565.40.410.12.9
Feb12° / 6470.610.83.3
Mar15° / 9710.2011.74.7
Apr20° / 11°11710.2012.86.2
May24° / 15°14110.9013.76.6
Jun27° / 20°29116.4014.15.2
Jul31° / 24°21716.40143.8
Aug31° / 24°20717.4013.23.6
Sep28° / 21°22914.6012.25.4
Oct23° / 15°1508.4011.27.2
Nov18° / 10°796.9010.36.2
Dec13° / 565.709.94.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34852
44951
54951
64753
74753
84753
94753
104654
114654
124555
134555
144555
154555
164555
174555
184555
194555
204654
214654
224654
234555
244654
254753
264753
274654
284555
294555
304555

Chance of precipitation in April

Any precipitation

Tsukumiura gets around 117 mm of rain over 10.2 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 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
133
233
333
432
532
632
732
832
932
1033
1133
1234
1334
1435
1535
1636
1736
1836
1936
2036
2136
2236
2336
2436
2536
2635
2735
2835
2934
3034

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
190820
288930
388930
4871030
5871030
6851140
7851140
8841240
9841240
10831340
11821350
12811450
13811450
14801550
15781651
16781651
17771661
18761761
19761761
20751861
21751861
22721972
23712072
24692182
25682282
26662293
276423103
286423103
296223114
306024124

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
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 6:08 AM to 5:32 AM, and sunset from 6:26 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:086:26
212.36:076:27
312.46:056:28
412.46:046:29
512.46:036:29
612.56:016:30
712.56:006:31
812.55:596:31
912.65:576:32
1012.65:566:33
1112.75:556:34
1212.75:536:34
1312.75:526:35
1412.85:516:36
1512.85:496:37
1612.85:486:37
1712.95:476:38
1812.95:466:39
1912.95:446:40
2012.95:436:40
2113.05:426:41
2213.05:416:42
2313.05:406:42
2413.15:396:43
2513.15:376:44
2613.15:366:45
2713.25:356:45
2813.25:346:46
2913.25:336:47
3013.35:326:48

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.27 kWh/m².

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 5.5 kWh/m² in May across the year — April's 5.27 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
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Tsukumiura

In seasonPeak

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

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

Tsukumiura's rainy season runs May–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 Tsukumiura?

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

6.2
Sightseeing
3rd-best month of the year
3.3
Beach & pool
7th-best month of the year

April is a reasonable time to visit Tsukumiura for sightseeing.

What to pack for Tsukumiura in April

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

In April, Tsukumiura sees daytime highs around 20°C and nights near 11°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Tsukumiura in April

The nearest coast averages about 17°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 24 km away) is warmest in August at about 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 25 to Dec 2 — about 6.3 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Tsukumiura 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 Tsukumiura peaks around June 21 at about 10 (extreme) — 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 highVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Extreme
Jul10Very high
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Tsukumiura 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 Tsukumiura is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodApr 1523 µg/m³Oct 1611 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr23Moderate
May22Moderate
Jun19Moderate
Jul16Moderate
Aug16Moderate
Sep12Moderate
Oct11Good
Nov12Moderate
Dec12Good
Location & terrain

Where is Tsukumiura?

Tsukumiura sits at 33.1°N, 131.9°E, 13 m above sea level, in Japan. The nearest listed city is Usuki, 8.0 km away.

Topography around Tsukumiura

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

Within 3 km, the terrain around Tsukumiura has significant variations in elevation — a maximum elevation change of 369 m around an average of 70 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 716 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,758 m.

The land around Tsukumiura is covered by trees (58%) and water (26%) within 3 km, trees (52%) and water (42%) within 16 km, and water (50%) and trees (45%) within 80 km.

3 km
369 m
16 km
716 m
80 km
1,758 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Usuki 8.0 km · Saiki 14 km · Tsurusaki 25 km · Mie 29 km · Ōita 31 km · Beppu 41 km · Kitsuki 45 km · Takedamachi 45 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 Tsukumiura (33.0754°, 131.8691°, elevation 13 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).