Uchiko weather in April

In April, Uchiko sees average daytime highs of 18°C and overnight lows near 8°C, with 144 mm of precipitation across 11.3 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 32% 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 Uchiko's 5th-clearest and 5th-windiest month. For the whole year in context, see Uchiko's year-round climate.

Daytime high
18°
7th warmest
Overnight low
6th coldest
Precipitation
144 mm
11.3 wet days
Daylight
12 h 48 min
5:45 AM – 6:35 PM
Cloud cover
59%
5th clearest
Wind
9 km/h
5th windiest
Solar energy
5.22 kWh/m²
Travel score
5.6
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 20°C by the end.

A typical April day in Uchiko reaches about 18°C in the afternoon and slips back to 8°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, April runs about 5°C warmer than March and about 4°C cooler than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1166
2166
3166
4166
5176
6177
7177
8177
9177
10177
11188
12188
13188
14188
15188
16188
17199
18199
19199
20199
21199
22199
232010
242010
252010
262010
272010
282010
292111
302111

How April really feels in Uchiko

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.

Uchiko weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°6710.74.7101.3
Feb / 8310.43.510.81.8
Mar13° / 12712.5111.73.5
Apr18° / 14411.30.112.85.6
May23° / 13°16911.7013.76.4
Jun25° / 18°30116.8014.25.3
Jul29° / 22°26318.20144.3
Aug30° / 23°17917.2013.24.0
Sep27° / 19°20415.1012.25.5
Oct22° / 12°1539.3011.26.9
Nov16° / 868.60.110.35.3
Dec10° / 7910.62.69.82.5

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 14% of April, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14951
24951
34852
44951
54852
64852
74951
84753
94852
104753
114753
124555
134654
144555
154456
164456
174555
184456
194456
204555
214555
224555
234555
244654
254654
264654
274654
284654
294654
304654

Chance of precipitation in April

Any precipitation

Uchiko gets around 144 mm of rain and snow over 11.3 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 38% and peaks near 41% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
238
337
437
537
637
737
837
937
1038
1138
1239
1339
1440
1540
1640
1741
1840
1940
2040
2139
2239
2339
2438
2538
2637
2737
2836
2936
3036

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
194510
293520
392620
492620
591720
691720
791720
891720
990820
1090820
1190820
1289920
1389920
1489920
1589920
16881020
17871030
18871030
19871030
20871030
21861130
22851140
23841240
24841240
25811351
26811351
27791461
28791461
29771571
30771571

Wind in April

Winds average 9 km/h in April.

Across April, daily wind ranges from about 8 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
268calm
278calm
288calm
298calm
308calm

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 6:05 AM to 5:28 AM, and sunset from 6:23 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:056:23
212.36:036:24
312.46:026:25
412.46:016:26
512.55:596:26
612.55:586:27
712.55:576:28
812.65:556:29
912.65:546:29
1012.65:526:30
1112.75:516:31
1212.75:506:32
1312.75:496:32
1412.85:476:33
1512.85:466:34
1612.85:456:35
1712.95:436:35
1812.95:426:36
1912.95:416:37
2013.05:406:38
2113.05:386:38
2213.05:376:39
2313.15:366:40
2413.15:356:41
2513.15:346:41
2613.25:336:42
2713.25:316:43
2813.25:306:44
2913.35:296:45
3013.35:286:45

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.22 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 5.45 kWh/m² in May across the year — April's 5.22 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
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Hazard calendar for Uchiko

In seasonPeak

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

Uchiko sits in the Pacific typhoon belt; the season peaks July–October.

Uchiko's rainy season runs April–October, when most of the year's rain falls.

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

Is April a good time to visit Uchiko?

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

5.6
Sightseeing
3rd-best month of the year
2.1
Beach & pool
7th-best month of the year

April is a reasonable time to visit Uchiko for sightseeing.

What to pack for Uchiko in April

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

In April, Uchiko sees daytime highs around 18°C and nights near 8°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Uchiko in April

The nearest coast averages about 15°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 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 11 to Nov 19 — about 5.3 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr15Cool
May17Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index in Uchiko 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 Uchiko peaks around June 23 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 23UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Uchiko 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 Uchiko is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1523 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep12Moderate
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Uchiko?

Uchiko sits at 33.5°N, 132.6°E, 61 m above sea level, in Japan. The nearest listed city is Ōzu, 11 km away.

Topography around Uchiko

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

Within 3 km, the terrain around Uchiko has significant variations in elevation — a maximum elevation change of 498 m around an average of 138 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,110 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Uchiko is covered by trees (79%) within 3 km, trees (91%) within 16 km, and water (49%) and trees (47%) within 80 km.

3 km
498 m
16 km
1,110 m
80 km
1,895 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Ōzu 11 km · Yawatahama 22 km · Iyo 23 km · Uwa 24 km · Masaki-chō 27 km · Haramachi 28 km · Matsuyama 34 km · Shinagawa 35 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 Uchiko (33.5499°, 132.6471°, elevation 61 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).