Ōami in Spring
In spring (March, April and May), Ōami sees average daytime highs around 17°C and overnight lows near 11°C, with 376 mm of precipitation over about 37 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 11°C in early March to 23°C by late May. The sky is clear or mostly clear about 29% of the time across spring, and the air most often feels dry.
Spring is Ōami's 3rd-best season to visit on our travel score. For the whole year in context, see Ōami's year-round climate.
- Avg daytime high
- 17°C
- 3rd-warmest season
- Avg overnight low
- 11°C
- Precipitation
- 376 mm
- 37 wet days
- Avg wind
- 14 km/h
- Travel score
- 4.9
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Ōami in Spring
Over the season highs climb from about 11°C in early March to 23°C by late May.
A typical spring day in Ōami reaches about 17°C and drops to 11°C overnight. The warmest of the three months is May, the coolest March.
How spring really feels in Ōami
Once humidity and wind are folded in, spring brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
spring sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ōami 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 | 9° / 4° | 83 | 8.1 | 0.6 | 9.9 | 2.2 |
| Feb | 10° / 4° | 78 | 8.8 | 0.8 | 10.7 | 2.3 |
| Mar | 13° / 7° | 135 | 13.1 | 0.4 | 11.7 | 3.3 |
| Apr | 17° / 11° | 115 | 12.5 | 0 | 12.9 | 5.1 |
| May | 21° / 16° | 127 | 11.2 | 0 | 13.8 | 6.2 |
| Jun | 24° / 20° | 166 | 13.2 | 0 | 14.4 | 5.9 |
| Jul | 28° / 23° | 135 | 12.6 | 0 | 14.2 | 5.4 |
| Aug | 30° / 25° | 102 | 11.3 | 0 | 13.3 | 5.0 |
| Sep | 26° / 22° | 175 | 14.3 | 0 | 12.2 | 5.7 |
| Oct | 21° / 17° | 219 | 13.6 | 0 | 11.1 | 6.0 |
| Nov | 17° / 12° | 112 | 11 | 0 | 10.1 | 5.2 |
| Dec | 12° / 7° | 75 | 8.5 | 0 | 9.6 | 3.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 29% of the time across spring.
Chance of precipitation in Spring
Ōami gets around 376 mm of rain and snow over 37 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 14 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 12 min in early March to 14 h 12 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 4.8 kWh/m².
Hazard calendar for Ōami
In spring, Ōami overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ōami sits in the Pacific typhoon belt; the season peaks July–October.
Is spring a good time to visit Ōami?
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 reasonable time to visit Ōami for sightseeing.
What to pack for Ōami in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Ōami sees daytime highs around 17°C and nights near 11°C. Worth packing: a warm layer, rain gear and sun protection. About 37 days see rain.
Sea temperature near Ōami in Spring
The nearest coast averages about 17°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 30 km away) is warmest in August at about 25°C and coldest in February near 15°C.
It's comfortable for a long swim from Jun 5 to Nov 22 — about 5.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 15 | 16 | 19 | 21 | 23 | 25 | 25 | 23 | 21 | 18 |
| Comfort | Cool | Bracing | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Bracing |
| Mar | 15 | Cool |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 21 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 25 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 21 | Refreshing |
| Dec | 18 | Cool |
UV index in Ōami in Spring
Clear-sky midday UV across spring averages 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 Ōami peaks around August 12 at about 10 (extreme) — 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 4 | 7 | 8 | 9 | 10 | 10 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Ōami 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 Ōami is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 11 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) | 14 | 17 | 21 | 22 | 21 | 16 | 12 | 11 | 11 | 14 | 14 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 17 | Moderate |
| Mar | 21 | Moderate |
| Apr | 22 | Moderate |
| May | 21 | Moderate |
| Jun | 16 | Moderate |
| Jul | 12 | Good |
| Aug | 11 | Good |
| Sep | 11 | Good |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 13 | Moderate |
Where is Ōami?
Ōami sits at 35.5°N, 140.3°E, 8 m above sea level, in Japan. The nearest listed city is Ōamishirasato, 3.0 km away.
Topography around Ōami
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ōami.
Within 3 km, the terrain around Ōami has only modest variations in elevation — a maximum elevation change of 108 m around an average of 19 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 186 m; within 80 km, large variations in elevation — a maximum elevation change of 755 m.
The land around Ōami is covered by cropland (38%), trees (35%) and artificial surfaces (23%) within 3 km, trees (41%) and cropland (24%) within 16 km, and water (43%), trees (22%) and artificial surfaces (21%) 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 Ōami (35.5167°, 140.3167°, elevation 8 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.