Anan weather in April

In April, Anan sees average daytime highs of 17°C and overnight lows near 14°C, with 137 mm of rain across 10.6 wet days and about 12.8 hours of daylight. It is the 8th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 18°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 18 min at the start of April to 13 h 18 min by month's end. Set against the rest of the year, April is Anan's 5th-clearest and 7th-windiest month. For the whole year in context, see Anan's year-round climate.

Daytime high
17°
8th warmest
Overnight low
14°
5th coldest
Rainfall
137 mm
10.6 wet days
Daylight
12 h 48 min
5:36 AM – 6:27 PM
Cloud cover
56%
5th clearest
Wind
22 km/h
7th windiest
Solar energy
5.26 kWh/m²
Travel score
5.3
out of 10

Anan is city in Tokushima Prefecture, Japan.

Density
252/km²
people per km²
Founded
1958

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 15°C in the first days to 18°C by the end.

A typical April day in Anan reaches about 17°C in the afternoon and slips back to 14°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 19°C. Set against its neighbours, April runs about 3°C warmer than March and about 3°C cooler than May.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
11512
21512
31512
41512
51612
61612
71612
81613
91613
101613
111613
121613
131613
141714
151714
161714
171714
181714
191714
201714
211715
221715
231815
241815
251815
261815
271815
281816
291816
301816

Anan weather by month

How April compares with the rest of the year at a glance. April is the 8th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 789.5102.6
Feb11° / 8410.210.72.7
Mar14° / 10°12811.711.73.8
Apr17° / 14°13710.612.85.3
May20° / 18°16510.613.76.1
Jun23° / 21°24313.814.25.8
Jul26° / 25°18711.8146.3
Aug27° / 26°1149.413.36.6
Sep26° / 24°22113.512.26.2
Oct22° / 20°21211.211.16.6
Nov18° / 15°1048.610.25.9
Dec13° / 10°8489.83.9

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 15% of April, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15446
25446
35446
45446
55446
65446
75446
85446
95446
105446
115347
125347
135248
145248
155149
165149
175050
184951
194951
204951
214951
224951
234951
244951
254852
264852
274951
284951
294951
304951

Chance of precipitation in April

Any precipitation

Anan gets around 137 mm of rain over 10.6 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
235
335
435
535
635
735
835
935
1035
1135
1236
1336
1436
1537
1637
1737
1837
1937
2037
2137
2237
2337
2436
2536
2636
2735
2835
2934
3034

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 70% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1881020
2881020
3871120
4851230
5841330
6831430
7831430
8811540
9801640
10791740
11791740
12771850
13751951
14742051
15732151
16712261
17702361
18692461
19672571
20662671
21642781
22622891
23603091
245831101
255532121
265233132
275034142
284834152
294635172
304435183

Wind in April

Winds average 22 km/h in April.

Across April, daily wind ranges from about 21 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over April. Sunrise moves from 5:57 AM to 5:20 AM, and sunset from 6:16 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:576:16
212.45:556:16
312.45:546:17
412.45:526:18
512.55:516:19
612.55:506:19
712.55:486:20
812.65:476:21
912.65:466:22
1012.65:446:22
1112.75:436:23
1212.75:426:24
1312.75:406:25
1412.85:396:25
1512.85:386:26
1612.85:366:27
1712.95:356:28
1812.95:346:29
1912.95:326:29
2013.05:316:30
2113.05:306:31
2213.05:296:32
2313.15:286:32
2413.15:266:33
2513.15:256:34
2613.25:246:35
2713.25:236:36
2813.25:226:36
2913.35:216:37
3013.35:206:38

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.26 kWh/m².

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 5.53 kWh/m² in May across the year — April's 5.26 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
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Anan

In seasonPeak

In April, Anan sits inside 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.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is April a good time to visit Anan?

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

5.3
Sightseeing
8th-best month of the year
1.1
Beach & pool
8th-best month of the year

April is a reasonable time to visit Anan for sightseeing.

What to pack for Anan in April

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

In April, 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 11 days see rain.

a warm layerrain gearsun protectiona windbreaker

Sea temperature near Anan in April

The nearest coast averages about 17°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 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.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Anan in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 10UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Very high
Jul10Extreme
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Anan 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 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1319 µg/m³Dec 1310 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar19Moderate
Apr19Moderate
May17Moderate
Jun14Moderate
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov11Good
Dec10Good
Location & terrain

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.

3 km
285 m
16 km
778 m
80 km
1,908 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Komatsushimachō 11 km · Tokushima 18 km · Ishii 25 km · Takabō 26 km · Yakami 28 km · Narutochō-mitsuishi 32 km · Kamojimachō-jōgejima 32 km · Yoshinogawa 36 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 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. 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).