Mutsu weather in April

In April, Mutsu sees average daytime highs of 6°C and overnight lows near 4°C, with 74 mm of precipitation across 10.2 wet days and about 13.1 hours of daylight. It is the 8th-warmest and 10th-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 39% 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 Mutsu's 1st-clearest and 7th-windiest month. For the whole year in context, see Mutsu's year-round climate.

Daytime high
8th warmest
Overnight low
5th coldest
Precipitation
74 mm
10.2 wet days
Daylight
13 h 06 min
5:02 AM – 6:08 PM
Cloud cover
54%
1st clearest
Wind
24 km/h
7th windiest
Solar energy
5.34 kWh/m²
Travel score
0.7
out of 10

Mutsu is city in Aomori Prefecture, Japan.

Density
65/km²
people per km²
Founded
1959

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 Mutsu reaches about 6°C in the afternoon and slips back to 4°C overnight — a 3°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 3°C warmer than March and about 5°C cooler than May.

-5°10°15°151015202530
Avg high (°C)Avg low (°C)
152
252
352
453
553
653
753
863
963
1063
1163
1263
1364
1464
1564
1674
1774
1874
1974
2074
2174
2275
2375
2485
2585
2685
2785
2885
2985
3086

How April really feels in Mutsu

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 21 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
21
wind chill below the day's low

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

Mutsu weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°10018.416.89.40.0
Feb / -2°71141410.30.0
Mar / 7112.2811.70.0
Apr / 7410.21.513.10.7
May11° / 9910.8014.32.7
Jun15° / 13°909.3014.94.6
Jul19° / 18°14011.7014.75.8
Aug22° / 20°15311.3013.76.4
Sep21° / 19°15112.3012.35.9
Oct15° / 13°11312.4010.94.5
Nov / 8613.21.69.71.5
Dec / 11016.411.29.10.0

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% of the time in April, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of April, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55644
65644
75644
85545
95545
105545
115545
125545
135545
145446
155446
165446
175347
185347
195347
205347
215347
225248
235248
245248
255248
265248
275248
285248
295149
305149

Chance of precipitation in April

Any precipitationSnow

Mutsu gets around 74 mm of rain and snow 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 precipitation averages around 34% and peaks near 35% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
13312
23311
33411
43410
53410
6349
7348
8348
9347
10346
11346
12346
13345
14355
15355
16354
17354
18354
19354
20353
21353
22353
23353
24342
25342
26342
27342
28341
29341
30341

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 24 km/h in April.

Across April, daily wind ranges from about 23 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
425breezy
525breezy
625breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1224breezy
1324breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2124breezy
2224breezy
2324breezy
2424breezy
2524breezy
2624breezy
2723breezy
2823breezy
2923breezy
3023breezy

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 5:27 AM to 4:41 AM, and sunset from 5:52 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:275:52
212.55:265:53
312.55:245:54
412.65:225:55
512.65:215:57
612.65:195:58
712.75:175:59
812.75:156:00
912.85:146:01
1012.85:126:02
1112.95:106:03
1212.95:096:04
1313.05:076:05
1413.05:056:06
1513.15:046:07
1613.15:026:08
1713.15:016:10
1813.24:596:11
1913.24:576:12
2013.34:566:13
2113.34:546:14
2213.44:536:15
2313.44:516:16
2413.54:506:17
2513.54:486:18
2613.54:476:19
2713.64:456:21
2813.64:446:22
2913.74:436:23
3013.74:416:24

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.34 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 5.67 kWh/m² in May across the year — April's 5.34 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.1Bright
55.1Bright
65.1Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Mutsu

In seasonPeak

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

Mutsu 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 Mutsu?

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
8th-best month of the year

April is a weaker month for outdoor sightseeing in Mutsu.

What to pack for Mutsu in April

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

In April, Mutsu sees daytime highs around 6°C and nights near 4°C. Pack a warm layer. Worth having: a heavy coat, rain gear, sun protection and a windbreaker. About 10 days see rain.

a warm layera heavy coatrain gearsun protectiona windbreaker

Sea temperature near Mutsu in April

The nearest coast averages about 8°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 22°C and coldest in March near 7°C.

It's comfortable for a long swim from Jul 31 to Oct 3 — about 2.1 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb7Bracing
Mar7Bracing
Apr8Bracing
May11Bracing
Jun14Bracing
Jul18Cool
Aug22Refreshing
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Mutsu 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 Mutsu peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 11 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 11UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Mutsu 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 Mutsu is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1419 µg/m³Dec 177 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb12Good
Mar17Moderate
Apr19Moderate
May16Moderate
Jun11Good
Jul10Good
Aug10Good
Sep9Good
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Mutsu?

Mutsu sits at 41.3°N, 141.2°E, 6 m above sea level, in Japan. The nearest listed city is Toyota, 60 km away.

Topography around Mutsu

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

Within 3 km, the terrain around Mutsu has only modest variations in elevation — a maximum elevation change of 63 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 868 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,559 m.

The land around Mutsu is covered by trees (38%) and artificial surfaces (27%) within 3 km, trees (59%) and water (33%) within 16 km, and water (63%) and trees (31%) within 80 km.

3 km
63 m
16 km
868 m
80 km
1,559 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Toyota 60 km · Aomori 66 km · Hakodate 67 km · Misawa 69 km · Towada 74 km · Hitokawame 75 km · Kamiiso 76 km · Hokuto 76 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 Mutsu (41.2894°, 141.2169°, elevation 6 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).