Tsuiki weather in April

In April, Tsuiki sees average daytime highs of 18°C and overnight lows near 11°C, with 138 mm of rain across 11 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 16°C in the first days to 20°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 Tsuiki's 3rd-clearest and 6th-windiest month. For the whole year in context, see Tsuiki's year-round climate.

Daytime high
18°
7th warmest
Overnight low
11°
6th coldest
Rainfall
138 mm
11 wet days
Daylight
12 h 48 min
5:51 AM – 6:41 PM
Cloud cover
59%
3rd clearest
Wind
11 km/h
6th windiest
Solar energy
5.07 kWh/m²
Travel score
5.6
out of 10

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 Tsuiki reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°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)
1169
2169
3169
41610
51610
61610
71710
81710
91710
101711
111711
121711
131811
141811
151811
161811
171812
181812
191912
201912
211912
221912
231912
241913
251913
262013
272013
282013
292013
302014

How April really feels in Tsuiki

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.

Tsuiki 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 / 689.91.5101.8
Feb10° / 759.61.210.72.2
Mar13° / 12411.40.211.73.7
Apr18° / 11°13811012.85.6
May22° / 16°15510.5013.76.6
Jun25° / 20°27814.6014.25.8
Jul29° / 24°23815.10144.7
Aug30° / 25°13212.3013.34.5
Sep27° / 22°15711.9012.26.1
Oct22° / 17°1007.8011.27.1
Nov17° / 11°828.5010.35.6
Dec12° / 6810.10.39.83.0

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 13% of April, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44654
54555
64555
74456
84555
94555
104555
114456
124456
134555
144555
154555
164555
174654
184654
194654
204753
214753
224753
234753
244753
254753
264852
274852
284852
294852
304753

Chance of precipitation in April

Any precipitation

Tsuiki gets around 138 mm of rain over 11 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 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
137
237
337
437
537
637
737
837
937
1037
1137
1237
1338
1438
1538
1638
1738
1838
1938
2038
2137
2237
2337
2436
2536
2635
2735
2834
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 81% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
194510
293610
393610
492710
591810
691810
790910
889920
9881020
10881020
11871120
12861220
13861220
14851320
15841420
16831520
17821530
18811630
19811630
20791740
21781840
22761950
23742051
24712261
25692371
26682471
27662581
28652591
296326101
306127111

Wind in April

Winds average 11 km/h in April.

Across April, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm

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 6:11 AM to 5:34 AM, and sunset from 6:30 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:116:30
212.36:106:31
312.46:086:31
412.46:076:32
512.56:066:33
612.56:046:34
712.56:036:34
812.66:026:35
912.66:006:36
1012.65:596:37
1112.75:576:37
1212.75:566:38
1312.75:556:39
1412.85:546:40
1512.85:526:40
1612.85:516:41
1712.95:506:42
1812.95:486:43
1912.95:476:43
2013.05:466:44
2113.05:456:45
2213.05:446:46
2313.15:426:47
2413.15:416:47
2513.15:406:48
2613.25:396:49
2713.25:386:50
2813.25:376:50
2913.35:356:51
3013.35:346:52

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.07 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 5.42 kWh/m² in May across the year — April's 5.07 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
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 Tsuiki

In seasonPeak

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

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

Tsuiki'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 Tsuiki?

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

5.6
Sightseeing
5th-best month of the year
1.9
Beach & pool
7th-best month of the year

April is a reasonable time to visit Tsuiki for sightseeing.

What to pack for Tsuiki in April

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

In April, Tsuiki sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Tsuiki in April

The nearest coast averages about 14°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 12°C.

It's comfortable for a long swim from Jun 6 to Nov 9 — about 5.2 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec16Cool

UV index in Tsuiki in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tsuiki peaks around June 21 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Tsuiki 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 Tsuiki is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2026 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar27Moderate
Apr24Moderate
May21Moderate
Jun18Moderate
Jul16Moderate
Aug19Moderate
Sep13Moderate
Oct12Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Tsuiki?

Tsuiki sits at 33.7°N, 131.0°E, 15 m above sea level, in Japan. The nearest listed city is Yukuhashi, 8.0 km away.

Topography around Tsuiki

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

Within 3 km, the terrain around Tsuiki has only modest variations in elevation — a maximum elevation change of 95 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 822 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,799 m.

The land around Tsuiki is covered by cropland (28%), artificial surfaces (27%) and water (21%) within 3 km, trees (38%) and water (38%) within 16 km, and trees (48%) and water (36%) within 80 km.

3 km
95 m
16 km
822 m
80 km
1,799 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Yukuhashi 8.0 km · Buzen 11 km · Miyako 11 km · Kanda 13 km · Nakatsu 16 km · Kawasaki 22 km · Tagawa 22 km · Akaike 25 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 Tsuiki (33.6731°, 131.0378°, elevation 15 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).