Mutsu in Spring
In spring (March, April and May), Mutsu sees average daytime highs around 7°C and overnight lows near 4°C, with 244 mm of precipitation over about 33 wet days across the season. It is the 3rd-warmest season and the driest season of the year.
Over the season highs climb from about 2°C in early March to 13°C by late May. The sky is clear or mostly clear about 35% of the time across spring, and the air most often feels dry.
Spring is Mutsu's 3rd-best season to visit on our travel score. For the whole year in context, see Mutsu's year-round climate.
- Avg daytime high
- 7°C
- 3rd-warmest season
- Avg overnight low
- 4°C
- Precipitation
- 244 mm
- 33 wet days
- Avg wind
- 24 km/h
- Travel score
- 1.1
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Mutsu in Spring
Over the season highs climb from about 2°C in early March to 13°C by late May.
A typical spring day in Mutsu reaches about 7°C and drops to 4°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Mutsu
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 52 that feel at or below 0°C.
The story in spring is cold — wind chill drags the overnight "feels like" below the raw low.
Mutsu weather by month
How the three spring months (March, April and May) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 1° / -2° | 100 | 18.4 | 16.8 | 9.4 | 0.0 |
| Feb | 1° / -2° | 71 | 14 | 14 | 10.3 | 0.0 |
| Mar | 3° / 1° | 71 | 12.2 | 8 | 11.7 | 0.0 |
| Apr | 6° / 4° | 74 | 10.2 | 1.5 | 13.1 | 0.7 |
| May | 11° / 8° | 99 | 10.8 | 0 | 14.3 | 2.7 |
| Jun | 15° / 13° | 90 | 9.3 | 0 | 14.9 | 4.6 |
| Jul | 19° / 18° | 140 | 11.7 | 0 | 14.7 | 5.8 |
| Aug | 22° / 20° | 153 | 11.3 | 0 | 13.7 | 6.4 |
| Sep | 21° / 19° | 151 | 12.3 | 0 | 12.3 | 5.9 |
| Oct | 15° / 13° | 113 | 12.4 | 0 | 10.9 | 4.5 |
| Nov | 9° / 6° | 86 | 13.2 | 1.6 | 9.7 | 1.5 |
| Dec | 3° / 1° | 110 | 16.4 | 11.2 | 9.1 | 0.0 |
Cloud cover in Spring
The sky is clear or mostly clear about 35% of the time across spring.
Chance of precipitation in Spring
Mutsu gets around 244 mm of rain and snow over 33 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 24 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 hours in early March to 14 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.1 kWh/m².
Hazard calendar for Mutsu
In spring, Mutsu overlaps 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.
Is spring a good time to visit Mutsu?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Mutsu.
What to pack for Mutsu in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Mutsu sees daytime highs around 7°C and nights near 4°C. Pack a warm layer. Worth having: a heavy coat, rain gear, sun protection and a windbreaker. About 33 days see rain.
Sea temperature near Mutsu in Spring
The nearest coast averages about 9°C across spring — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 7 | 7 | 8 | 11 | 14 | 18 | 22 | 22 | 19 | 15 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 7 | Bracing |
| Mar | 7 | Bracing |
| Apr | 8 | Bracing |
| May | 11 | Bracing |
| Jun | 14 | Bracing |
| Jul | 18 | Cool |
| Aug | 22 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 19 | Cool |
| Nov | 15 | Cool |
| Dec | 12 | Bracing |
UV index in Mutsu in Spring
Clear-sky midday UV across spring averages around 5 — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 8 | 7 | 5 | 8 | 6 | 4 | 2 | 1 |
| Level | Low | Low | Moderate | High | Very high | Very high | Moderate | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 6 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Air quality in Mutsu in Spring
Average fine-particle pollution (PM2.5) through the year — so you can see where spring 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 8 | 12 | 17 | 19 | 16 | 11 | 10 | 10 | 9 | 9 | 8 | 7 |
| Level | Good | Good | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 8 | Good |
| Feb | 12 | Good |
| Mar | 17 | Moderate |
| Apr | 19 | Moderate |
| May | 16 | Moderate |
| Jun | 11 | Good |
| Jul | 10 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 9 | Good |
| Nov | 8 | Good |
| Dec | 7 | Good |
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.
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
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.