Hakodate weather in April

In April, Hakodate sees average daytime highs of 7°C and overnight lows near 3°C, with 83 mm of precipitation across 9.8 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 5°C in the first days to 8°C by the end. The sky is clear or mostly clear about 36% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 24 min at the start of April to 13 h 42 min by month's end. Set against the rest of the year, April is Hakodate's 2nd-clearest and 7th-windiest month. For the whole year in context, see Hakodate's year-round climate.

Daytime high
8th warmest
Overnight low
5th coldest
Precipitation
83 mm
9.8 wet days
Daylight
13 h 06 min
5:04 AM – 6:11 PM
Cloud cover
56%
2nd clearest
Wind
16 km/h
7th windiest
Solar energy
5.22 kWh/m²
Travel score
0.7
out of 10

Hakodate is city in Hokkaido, Japan.

Density
407/km²
people per km²
Founded
1922

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 5°C in the first days to 8°C by the end.

A typical April day in Hakodate reaches about 7°C in the afternoon and slips back to 3°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 10°C. Set against its neighbours, April runs about 4°C warmer than March and about 5°C cooler than May.

-5°10°15°151015202530
Avg high (°C)Avg low (°C)
151
251
351
451
551
652
752
862
962
1062
1162
1262
1362
1462
1573
1673
1773
1873
1973
2073
2173
2273
2384
2484
2584
2684
2784
2884
2984
3094

How April really feels in Hakodate

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 24 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
24
wind chill below the day's low

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

Hakodate weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -4°529.29.39.30.0
Feb-0° / -4°527.97.210.30.0
Mar / -1°669.65.911.70.0
Apr / 839.81.313.10.7
May11° / 11911.6014.32.8
Jun16° / 13°12111.60154.6
Jul20° / 17°17814.9014.75.4
Aug22° / 20°20614.8013.75.8
Sep21° / 18°18512.8012.35.8
Oct14° / 11°11411.4010.94.2
Nov / 87111.69.61.0
Dec / -1°7110.57.590.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25644
35545
45545
55545
65545
75545
85545
95545
105545
115545
125545
135545
145446
155446
165446
175347
185347
195347
205347
215347
225248
235248
245248
255149
265149
275149
285050
294951
304951

Chance of precipitation in April

Any precipitationSnow

Hakodate gets around 83 mm of rain and snow over 9.8 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 33% and peaks near 36% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
13010
2309
3309
4318
5317
6317
7326
8326
9326
10325
11325
12335
13335
14335
15335
16345
17344
18344
19344
20344
21344
22343
23343
24343
25342
26352
27352
28351
29351
30361

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 16 km/h in April.

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

05101520151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light 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 24 min at the start of April to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 78 minutes over April. Sunrise moves from 5:29 AM to 4:42 AM, and sunset from 5:54 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:295:54
212.55:275:55
312.55:265:57
412.65:245:58
512.65:225:59
612.75:206:00
712.75:196:01
812.85:176:02
912.85:156:03
1012.85:146:04
1112.95:126:05
1212.95:106:07
1313.05:096:08
1413.05:076:09
1513.15:056:10
1613.15:046:11
1713.25:026:12
1813.25:006:13
1913.34:596:14
2013.34:576:15
2113.44:566:17
2213.44:546:18
2313.44:526:19
2413.54:516:20
2513.54:496:21
2613.64:486:22
2713.64:466:23
2813.74:456:24
2913.74:446:25
3013.74:426:27

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.22 kWh/m².

For context, solar energy here swings from a low near 1.68 kWh/m² to a high of 5.44 kWh/m² in May across the year — April's 5.22 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
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Hazard calendar for Hakodate

In seasonPeak

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

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

Hakodate'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 Hakodate?

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

0.7
Sightseeing
8th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Hakodate.

What to pack for Hakodate in April

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

In April, Hakodate sees daytime highs around 7°C and nights near 3°C. Pack a warm layer. Worth having: a heavy coat, rain gear and sun protection. About 10 days see rain.

a warm layera heavy coatrain gearsun protection

Sea temperature near Hakodate in April

The nearest coast averages about 9°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 23°C and coldest in February near 8°C.

It's comfortable for a long swim from Jul 26 to Oct 7 — about 2.4 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun15Bracing
Jul19Cool
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec13Bracing

UV index in Hakodate 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 Hakodate peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Hakodate 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 Hakodate is worst in April — around 17 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (December, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1216 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar16Moderate
Apr17Moderate
May14Moderate
Jun9Good
Jul8Good
Aug8Good
Sep8Good
Oct9Good
Nov8Good
Dec6Good
Location & terrain

Where is Hakodate?

Hakodate sits at 41.8°N, 140.7°E, 5 m above sea level, in Japan. The nearest listed city is Kamiiso, 9.0 km away.

Topography around Hakodate

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

Within 3 km, the terrain around Hakodate has significant variations in elevation — a maximum elevation change of 292 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 928 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,254 m.

The land around Hakodate is covered by artificial surfaces (49%) and water (44%) within 3 km, water (48%) and trees (32%) within 16 km, and water (64%) and trees (32%) within 80 km.

3 km
292 m
16 km
928 m
80 km
1,254 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Kamiiso 9.0 km · Hokuto 10 km · Honchō 14 km · Muroran 64 km · Yakumo 66 km · Mutsu 67 km · Date 78 km · Noboribetsu 84 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 Hakodate (41.7758°, 140.7367°, 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).