Imizu weather in April

In April, Imizu sees average daytime highs of 15°C and overnight lows near 7°C, with 150 mm of precipitation across 14.5 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 18°C by the end. The sky is clear or mostly clear about 30% 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 Imizu's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Imizu's year-round climate.

Daytime high
15°
7th warmest
Overnight low
6th coldest
Precipitation
150 mm
14.5 wet days
Daylight
12 h 54 min
5:24 AM – 6:20 PM
Cloud cover
60%
2nd clearest
Wind
9 km/h
2nd windiest
Solar energy
5.21 kWh/m²
Travel score
4.2
out of 10

Imizu is city in Toyama Prefecture, Japan.

Density
829/km²
people per km²
Founded
2005

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 13°C in the first days to 18°C by the end.

A typical April day in Imizu reaches about 15°C in the afternoon and slips back to 7°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 21°C. Set against its neighbours, April runs about 6°C warmer than March and about 5°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1124
2125
3135
4135
5135
6135
7146
8146
9146
10146
11146
12157
13157
14157
15157
16168
17168
18168
19168
20168
21178
22179
23179
24179
25179
26189
271810
281810
291810
301810

How April really feels in Imizu

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.

Imizu weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°21022.917.99.80.0
Feb / -0°16419.114.610.60.1
Mar / 17918.98.811.71.5
Apr15° / 15014.51.312.94.2
May21° / 13°15614.6013.95.8
Jun24° / 18°20015.4014.55.7
Jul28° / 22°27318.6014.34.8
Aug29° / 23°17815.8013.44.8
Sep25° / 19°21115.6012.25.7
Oct19° / 13°18014.60115.5
Nov14° / 16916.81.2103.3
Dec / 2142210.89.50.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54654
64753
74753
84654
94753
104753
114654
124654
134654
144654
154555
164555
174555
184555
194456
204555
214456
224555
234456
244555
254555
264654
274555
284555
294753
304753

Chance of precipitation in April

Any precipitationSnow

Imizu gets around 150 mm of rain and snow over 14.5 wet days in April, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 49% and peaks near 57% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
15715
25614
35613
45512
55511
65510
7549
8538
9537
10526
11516
12505
13494
14494
15483
16483
17472
18462
19462
20451
21451
22441
23441
24441
25440
26440
27440
28440
29440
30440

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 98% 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
49910
59910
69910
79910
89910
99910
109910
119910
129910
139910
149910
159910
169910
179910
189820
199820
209820
219820
229820
239730
249730
259640
269640
279550
289361
299271
309181

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:466:07
212.45:446:08
312.45:436:08
412.55:416:09
512.55:406:10
612.55:386:11
712.65:376:12
812.65:356:13
912.75:346:14
1012.75:326:15
1112.75:316:15
1212.85:296:16
1312.85:286:17
1412.95:266:18
1512.95:256:19
1612.95:246:20
1713.05:226:21
1813.05:216:22
1913.15:196:23
2013.15:186:23
2113.15:176:24
2213.25:156:25
2313.25:146:26
2413.25:136:27
2513.35:116:28
2613.35:106:29
2713.35:096:30
2813.45:086:31
2913.45:066:31
3013.55:056:32

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.21 kWh/m².

For context, solar energy here swings from a low near 1.94 kWh/m² to a high of 5.68 kWh/m² in May across the year — April's 5.21 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.5Bright
305.5Bright
Planning a trip in April

Hazard calendar for Imizu

In seasonPeak

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

Imizu 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 Imizu?

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

4.2
Sightseeing
7th-best month of the year
0.7
Beach & pool
7th-best month of the year

April is a reasonable time to visit Imizu for sightseeing.

What to pack for Imizu in April

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

In April, Imizu sees daytime highs around 15°C and nights near 7°C. Pack rain gear. Worth having: a warm layer and sun protection. About 15 days see rain.

rain geara warm layersun protection

Sea temperature near Imizu 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 offshore 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 Imizu 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 Imizu peaks around August 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 13UV 10Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Imizu 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 Imizu 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 Imizu?

Imizu sits at 36.8°N, 137.1°E, 3 m above sea level, in Japan. The nearest listed city is Nishishinminato, 5.0 km away.

Topography around Imizu

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

Within 3 km, the terrain around Imizu has only modest variations in elevation — a maximum elevation change of 19 m around an average of 1 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 263 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,123 m.

The land around Imizu is covered by water (45%) and artificial surfaces (30%) within 3 km, water (43%) and artificial surfaces (24%) within 16 km, and trees (53%) and water (36%) within 80 km.

3 km
19 m
16 km
263 m
80 km
3,123 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Nishishinminato 5.0 km · Takaoka 10 km · Toyama 11 km · Himi 15 km · Himimachi 16 km · Gohyakkoku 21 km · Namerikawa 21 km · Yatsuomachi-higashikumisaka 22 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 Imizu (36.7683°, 137.1257°, elevation 3 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).