Den’enchōfu weather in April

In April, Den’enchōfu sees average daytime highs of 17°C and overnight lows near 12°C, with 115 mm of rain across 11.8 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 19°C by the end. The sky is clear or mostly clear about 32% 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 24 min by month's end. Set against the rest of the year, April is Den’enchōfu's 7th-clearest and 1st-windiest month. For the whole year in context, see Den’enchōfu's year-round climate.

Daytime high
17°
7th warmest
Overnight low
12°
6th coldest
Rainfall
115 mm
11.8 wet days
Daylight
12 h 54 min
5:15 AM – 6:09 PM
Cloud cover
60%
7th clearest
Wind
18 km/h
1st windiest
Solar energy
4.77 kWh/m²
Travel score
5.1
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 19°C by the end.

A typical April day in Den’enchōfu reaches about 17°C in the afternoon and slips back to 12°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 20°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)
1159
2159
3159
4159
51510
61510
71610
81610
91610
101611
111611
121611
131711
141711
151711
161712
171712
181712
191712
201812
211813
221813
231813
241813
251813
261813
271914
281914
291914
301914

How April really feels in Den’enchōfu

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.

Den’enchōfu 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
Jan / 7270.99.92.2
Feb10° / 707.81.410.72.3
Mar13° / 12712.20.611.73.4
Apr17° / 12°11511.8012.95.1
May21° / 16°12811.1013.96.2
Jun24° / 20°16412.7014.46.0
Jul27° / 23°14112.1014.25.8
Aug29° / 25°10210.6013.35.5
Sep26° / 22°17513.4012.26.0
Oct21° / 17°21012.8011.16.2
Nov16° / 11°9710010.15.2
Dec12° / 637.40.19.63.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% 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 55%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24852
34852
44753
54852
64852
74852
84753
94753
104753
114654
124654
134654
144555
154456
164456
174456
184456
194456
204357
214357
224456
234456
244456
254456
264555
274456
284456
294456
304456

Chance of precipitation in April

Any precipitation

Den’enchōfu gets around 115 mm of rain over 11.8 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 39% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
439
540
640
740
840
940
1041
1141
1241
1341
1441
1541
1641
1741
1841
1941
2040
2140
2239
2339
2438
2538
2638
2737
2836
2936
3035

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 82% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
196400
295500
395500
494600
594600
693700
792800
892800
990910
1090910
11891010
12881110
13881110
14871210
15851320
16841420
17831520
18821620
19801721
20781831
21771931
22762031
23732241
24722341
25702451
26672661
27652771
28632881
29622981
30603091

Wind in April

Winds average 18 km/h in April, the windiest month of the year.

Across April, daily wind ranges from about 18 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
418light breeze
518light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1018light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:36 AM to 4:57 AM, and sunset from 5:56 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:365:56
212.45:345:57
312.45:335:58
412.55:325:59
512.55:305:59
612.55:296:00
712.65:276:01
812.65:266:02
912.65:246:03
1012.75:236:04
1112.75:216:04
1212.85:206:05
1312.85:196:06
1412.85:176:07
1512.95:166:08
1612.95:156:09
1712.95:136:09
1813.05:126:10
1913.05:116:11
2013.05:096:12
2113.15:086:13
2213.15:076:14
2313.25:056:14
2413.25:046:15
2513.25:036:16
2613.35:026:17
2713.35:006:18
2813.34:596:19
2913.44:586:20
3013.44:576:20

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.77 kWh/m².

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.12 kWh/m² in May across the year — April's 4.77 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.9Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.1Bright
295.1Bright
305.1Bright
Planning a trip in April

Hazard calendar for Den’enchōfu

In seasonPeak

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

Den’enchōfu 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 Den’enchōfu?

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

5.1
Sightseeing
8th-best month of the year
1.2
Beach & pool
7th-best month of the year

April is a reasonable time to visit Den’enchōfu for sightseeing.

What to pack for Den’enchōfu in April

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

In April, Den’enchōfu sees daytime highs around 17°C and nights near 12°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Den’enchōfu 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 19 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 7 to Nov 3 — about 4.9 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Den’enchōfu 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 Den’enchōfu peaks around July 20 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 20UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Den’enchōfu 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 Den’enchōfu is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1525 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar23Moderate
Apr26Moderate
May21Moderate
Jun18Moderate
Jul13Moderate
Aug12Moderate
Sep12Moderate
Oct14Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Den’enchōfu?

Den’enchōfu sits at 35.6°N, 139.7°E, 44 m above sea level, in Japan. The nearest listed city is Ebara, 4.0 km away.

Topography around Den’enchōfu

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

Within 3 km, the terrain around Den’enchōfu has only modest variations in elevation — a maximum elevation change of 50 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,092 m.

The land around Den’enchōfu is covered by artificial surfaces (87%) within 3 km, artificial surfaces (74%) within 16 km, and trees (37%), artificial surfaces (25%) and water (23%) within 80 km.

3 km
50 m
16 km
137 m
80 km
2,092 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Ebara 4.0 km · Yōga 4.0 km · Ikegami 4.0 km · Nakanobu 4.0 km · Togoshi 5.0 km · Meguro 5.0 km · Setagaya 5.0 km · Wakabayashi 6.0 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 Den’enchōfu (35.5955°, 139.6653°, elevation 44 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).