Asahikawa weather in April

In April, Asahikawa sees average daytime highs of 10°C and overnight lows near 1°C, with 77 mm of precipitation across 13.6 wet days and about 13.2 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 7°C in the first days to 13°C by the end. The sky is clear or mostly clear about 23% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 13 h 54 min by month's end. Set against the rest of the year, April is Asahikawa's 2nd-clearest and 3rd-windiest month. For the whole year in context, see Asahikawa's year-round climate.

Daytime high
10°
7th warmest
Overnight low
6th coldest
Precipitation
77 mm
13.6 wet days
Daylight
13 h 12 min
4:55 AM – 6:07 PM
Cloud cover
64%
2nd clearest
Wind
10 km/h
3rd windiest
Solar energy
4.96 kWh/m²
Travel score
2.1
out of 10

Asahikawa is city in Hokkaido, Japan.

Density
446/km²
people per km²
Founded
1877

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 7°C in the first days to 13°C by the end.

A typical April day in Asahikawa reaches about 10°C in the afternoon and slips back to 1°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 16°C. Set against its neighbours, April runs about 8°C warmer than March and about 6°C cooler than May.

-10°10°20°151015202530
Avg high (°C)Avg low (°C)
16-3
26-2
37-2
47-2
57-2
68-2
78-1
88-1
98-1
109-1
1190
1290
1390
14100
15100
16101
17111
18111
19111
20112
21122
22122
23122
24122
25133
26133
27133
28133
29144
30144

How April really feels in Asahikawa

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 25 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
25
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Asahikawa weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -12°571520.49.10.0
Feb-2° / -11°501317.110.20.0
Mar / -6°6714.915.711.60.0
Apr10° / 7713.65.813.22.1
May16° / 91130.414.54.8
Jun20° / 12°9012.4015.25.8
Jul24° / 16°14714.4014.96.0
Aug24° / 17°17115013.85.9
Sep20° / 12°14314.4012.35.6
Oct14° / 11515.61.210.83.5
Nov / -2°10718.412.39.50.5
Dec-1° / -9°8317.321.78.80.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14060
24060
33961
44060
54060
64060
73961
83961
94060
104060
114060
124060
134159
144159
154159
164159
174159
184060
194060
204159
214159
224159
234159
244159
254060
264060
274060
284060
293961
303961

Chance of precipitation in April

Any precipitationSnow

Asahikawa gets around 77 mm of rain and snow over 13.6 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 46% and peaks near 46% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
14635
24633
34632
44630
54629
64628
74626
84625
94624
104623
114622
124621
134620
144620
154619
164618
174618
184617
194616
204616
214515
224514
234513
244513
254512
264511
274510
28459
29458
30457

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 10 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
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 5:22 AM to 4:32 AM, and sunset from 5:49 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:225:49
212.55:205:50
312.65:185:51
412.65:165:52
512.75:145:54
612.75:125:55
712.85:115:56
812.85:095:57
912.95:075:58
1012.95:056:00
1113.05:036:01
1213.05:026:02
1313.15:006:03
1413.14:586:05
1513.24:566:06
1613.24:556:07
1713.34:536:08
1813.34:516:09
1913.44:496:11
2013.44:486:12
2113.44:466:13
2213.54:446:14
2313.54:436:15
2413.64:416:17
2513.64:406:18
2613.74:386:19
2713.74:366:20
2813.84:356:22
2913.84:336:23
3013.94:326:24

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.96 kWh/m².

For context, solar energy here swings from a low near 1.53 kWh/m² to a high of 5.25 kWh/m² in May across the year — April's 4.96 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
164.9Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in April

Is April a good time to visit Asahikawa?

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

2.1
Sightseeing
7th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Asahikawa.

What to pack for Asahikawa in April

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

In April, Asahikawa sees daytime highs around 10°C and nights near 1°C. Pack a warm layer and rain gear. Worth having: sun protection. About 14 days see rain.

a warm layerrain gearsun protection

Sea temperature near Asahikawa in April

The nearest coast averages about 7°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 60 km away) is warmest in August at about 21°C and coldest in February near 5°C.

It's comfortable for a long swim from Aug 3 to Sep 20 — about 1.6 months when the water holds above 20°C.

10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb5Bracing
Mar5Bracing
Apr7Bracing
May10Bracing
Jun14Bracing
Jul18Cool
Aug21Refreshing
Sep21Refreshing
Oct17Cool
Nov13Bracing
Dec9Bracing

UV index in Asahikawa in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Asahikawa peaks around August 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 16UV 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May7Very high
Jun7Very high
Jul6High
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Asahikawa 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 Asahikawa is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1517 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar16Moderate
Apr17Moderate
May15Moderate
Jun11Good
Jul11Good
Aug9Good
Sep8Good
Oct9Good
Nov9Good
Dec7Good
Location & terrain

Where is Asahikawa?

Asahikawa sits at 43.8°N, 142.4°E, 121 m above sea level, in Japan. The nearest listed city is Fukagawa, 27 km away.

Topography around Asahikawa

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

Within 3 km, the terrain around Asahikawa has only modest variations in elevation — a maximum elevation change of 64 m around an average of 115 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 755 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,253 m.

The land around Asahikawa is covered by artificial surfaces (77%) within 3 km, trees (51%) and cropland (31%) within 16 km, and trees (81%) within 80 km.

3 km
64 m
16 km
755 m
80 km
2,253 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Fukagawa 27 km · Ashibetsu 32 km · Minamishibetsuchō 43 km · Takikawa 44 km · Furano 47 km · Shimo-furano 47 km · Sunagawa 49 km · Rumoi 61 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 Asahikawa (43.7706°, 142.3649°, elevation 121 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. 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).