Nanao weather in April

In April, Nanao sees average daytime highs of 16°C and overnight lows near 9°C, with 116 mm of precipitation across 12.4 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 19°C by the end. The sky is clear or mostly clear about 33% 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 30 min by month's end. Set against the rest of the year, April is Nanao's 1st-clearest and 5th-windiest month. For the whole year in context, see Nanao's year-round climate.

Daytime high
16°
7th warmest
Overnight low
5th coldest
Precipitation
116 mm
12.4 wet days
Daylight
12 h 54 min
5:24 AM – 6:21 PM
Cloud cover
58%
1st clearest
Wind
12 km/h
5th windiest
Solar energy
5.27 kWh/m²
Travel score
4.8
out of 10

Nanao is city in Ishikawa Prefecture, Japan.

Density
158/km²
people per km²
Founded
2004

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 14°C in the first days to 19°C by the end.

A typical April day in Nanao reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, April runs about 5°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1136
2147
3147
4147
5147
6147
7157
8158
9158
10158
11158
12168
13168
14169
15169
16169
17179
18179
19179
201710
211710
221710
231810
241810
251811
261811
271811
281911
291911
301911

How April really feels in Nanao

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

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Nanao weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 122208.79.70.6
Feb / 9516.1710.60.9
Mar11° / 126162.611.72.3
Apr16° / 11612.40.212.94.8
May21° / 14°12011.90146.3
Jun25° / 19°15711.5014.56.3
Jul29° / 23°24615.7014.34.6
Aug31° / 25°16612.3013.44.3
Sep27° / 21°20213.6012.35.7
Oct21° / 15°14913.20116.0
Nov15° / 10°13415.60.1104.0
Dec10° / 13820.54.49.51.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64852
74852
84852
94951
104951
114852
124852
134951
144852
154852
164852
174951
184852
194852
204852
214852
224852
234852
244852
254852
264753
274852
284852
294753
304852

Chance of precipitation in April

Any precipitationSnow

Nanao gets around 116 mm of rain and snow over 12.4 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 42% and peaks near 48% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1482
2472
3472
4472
5462
6462
7452
8441
9441
10431
11431
12421
13421
14410
15410
16410
17410
18400
19400
20400
21390
22390
23390
24390
25390
26390
27390
28390
29390
30380

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
59910
69910
79910
89910
99910
109910
119910
129910
139811
149811
159811
169811
179721
189721
199721
209721
219631
229631
239541
249451
259451
269361
279271
289181
299091
3089101

Wind in April

Winds average 12 km/h in April.

Across April, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 24 min at the start of April to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:46 AM to 5:05 AM, and sunset from 6:07 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:466:07
212.45:456:08
312.45:436:09
412.55:426:10
512.55:406:11
612.65:396:12
712.65:376:13
812.65:366:14
912.75:346:15
1012.75:336:15
1112.85:316:16
1212.85:306:17
1312.85:286:18
1412.95:276:19
1512.95:256:20
1612.95:246:21
1713.05:226:22
1813.05:216:23
1913.15:206:24
2013.15:186:24
2113.15:176:25
2213.25:166:26
2313.25:146:27
2413.35:136:28
2513.35:126:29
2613.35:106:30
2713.45:096:31
2813.45:086:32
2913.45:076:33
3013.55:056:33

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.27 kWh/m².

For context, solar energy here swings from a low near 1.85 kWh/m² to a high of 5.81 kWh/m² in May across the year — April's 5.27 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.6Bright
305.6Bright
Planning a trip in April

Hazard calendar for Nanao

In seasonPeak

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

Nanao 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 Nanao?

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

4.8
Sightseeing
5th-best month of the year
0.9
Beach & pool
7th-best month of the year

April is a reasonable time to visit Nanao for sightseeing.

What to pack for Nanao in April

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

In April, Nanao sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Nanao in April

The nearest coast averages about 11°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 16 km away) is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 18 to Nov 3 — about 4.6 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Cool
Jun20Cool
Jul24Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Nanao 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 Nanao peaks around August 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 15UV 10Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Nanao 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 Nanao is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1621 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Nanao?

Nanao sits at 37.0°N, 137.0°E, 2 m above sea level, in Japan. The nearest listed city is Hitoto, 9.0 km away.

Topography around Nanao

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

Within 3 km, the terrain around Nanao has only modest variations in elevation — a maximum elevation change of 108 m around an average of 16 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 551 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,981 m.

The land around Nanao is covered by water (31%), trees (27%) and artificial surfaces (24%) within 3 km, trees (48%) and water (41%) within 16 km, and water (58%) and trees (32%) within 80 km.

3 km
108 m
16 km
551 m
80 km
2,981 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Hitoto 9.0 km · Oshima 19 km · Himimachi 21 km · Anamizu 21 km · Himi 22 km · Hakui 25 km · Nishishinminato 31 km · Ushitsu 33 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 Nanao (37.0482°, 136.968°, elevation 2 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).