Anan in Spring
In spring (March, April and May), Anan sees average daytime highs around 17°C and overnight lows near 14°C, with 429 mm of rain over about 33 wet days across the season. It is the 3rd-warmest season and the 3rd-wettest season.
Over the season highs climb from about 12°C in early March to 21°C by late May. The sky is clear or mostly clear about 33% of the time across spring, and the air most often feels dry.
Spring is Anan's 3rd-best season to visit on our travel score. For the whole year in context, see Anan's year-round climate.
- Avg daytime high
- 17°C
- 3rd-warmest season
- Avg overnight low
- 14°C
- Rainfall
- 429 mm
- 33 wet days
- Avg wind
- 22 km/h
- Travel score
- 5.1
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Anan in Spring
Over the season highs climb from about 12°C in early March to 21°C by late May.
A typical spring day in Anan reaches about 17°C and drops to 14°C overnight. The warmest of the three months is May, the coolest March.
Anan 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 11° / 7° | 78 | 9.5 | 10 | 2.6 |
| Feb | 11° / 7° | 84 | 10.2 | 10.7 | 2.7 |
| Mar | 14° / 10° | 128 | 11.7 | 11.7 | 3.8 |
| Apr | 17° / 14° | 137 | 10.6 | 12.8 | 5.3 |
| May | 20° / 18° | 165 | 10.6 | 13.7 | 6.1 |
| Jun | 23° / 21° | 243 | 13.8 | 14.2 | 5.8 |
| Jul | 26° / 25° | 187 | 11.8 | 14 | 6.3 |
| Aug | 27° / 26° | 114 | 9.4 | 13.3 | 6.6 |
| Sep | 26° / 24° | 221 | 13.5 | 12.2 | 6.2 |
| Oct | 22° / 20° | 212 | 11.2 | 11.1 | 6.6 |
| Nov | 18° / 15° | 104 | 8.6 | 10.2 | 5.9 |
| Dec | 13° / 10° | 84 | 8 | 9.8 | 3.9 |
Cloud cover in Spring
The sky is clear or mostly clear about 33% of the time across spring.
Chance of precipitation in Spring
Anan gets around 429 mm of rain 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 22 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 12 min in early March to 14 h 06 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 Anan
In spring, Anan overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Anan sits in the Pacific typhoon belt; the season peaks July–October.
Is spring a good time to visit Anan?
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 Anan for sightseeing.
What to pack for Anan in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Anan sees daytime highs around 17°C and nights near 14°C. Worth packing: a warm layer, rain gear, sun protection and a windbreaker. About 33 days see rain.
Sea temperature near Anan 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 21 km away) is warmest in August at about 27°C and coldest in February near 15°C.
It's comfortable for a long swim from May 24 to Dec 2 — about 6.3 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 17 | 15 | 16 | 17 | 19 | 22 | 25 | 27 | 26 | 24 | 22 | 19 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 17 | Cool |
| Feb | 15 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 27 | Warm |
| Sep | 26 | Warm |
| Oct | 24 | Warm |
| Nov | 22 | Refreshing |
| Dec | 19 | Cool |
UV index in Anan in Spring
Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Anan peaks around July 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (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) | 3 | 4 | 6 | 7 | 9 | 10 | 10 | 8 | 9 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 8 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Anan 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 Anan is worst in April — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 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) | 12 | 15 | 19 | 19 | 17 | 14 | 10 | 10 | 10 | 10 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 19 | Moderate |
| Apr | 19 | Moderate |
| May | 17 | Moderate |
| Jun | 14 | Moderate |
| Jul | 10 | Good |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Anan?
Anan sits at 33.9°N, 134.7°E, 12 m above sea level, in Japan. The nearest listed city is Komatsushimachō, 11 km away.
Topography around Anan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Anan.
Within 3 km, the terrain around Anan has significant variations in elevation — a maximum elevation change of 285 m around an average of 27 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 778 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,908 m.
The land around Anan is covered by cropland (32%), trees (29%) and artificial surfaces (28%) within 3 km, water (48%) and trees (37%) within 16 km, and water (50%) and trees (43%) 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 Anan (33.9167°, 134.65°, elevation 12 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.