Sarubetsu weather in April

In April, Sarubetsu sees average daytime highs of 11°C and overnight lows near 0°C, with 88 mm of precipitation across 10.8 wet days and about 13.1 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 8°C in the first days to 14°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 48 min by month's end. Set against the rest of the year, April is Sarubetsu's 7th-clearest and 4th-windiest month. For the whole year in context, see Sarubetsu's year-round climate.

Daytime high
11°
7th warmest
Overnight low
6th coldest
Precipitation
88 mm
10.8 wet days
Daylight
13 h 12 min
4:52 AM – 6:02 PM
Cloud cover
60%
7th clearest
Wind
9 km/h
4th windiest
Solar energy
5.1 kWh/m²
Travel score
2.6
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 8°C in the first days to 14°C by the end.

A typical April day in Sarubetsu reaches about 11°C in the afternoon and slips back to 0°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 17°C. Set against its neighbours, April runs about 7°C warmer than March and about 5°C cooler than May.

-10°10°20°151015202530
Avg high (°C)Avg low (°C)
17-3
28-3
38-2
48-2
58-2
69-2
79-1
89-1
99-1
109-1
1110-1
12100
13100
14100
15110
16111
17111
18111
19121
20121
21122
22122
23132
24132
25133
26133
27143
28143
29144
30144

How April really feels in Sarubetsu

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 24 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
24
wind chill below the day's low

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Sarubetsu 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-2° / -13°616.77.19.20.0
Feb-1° / -12°487.27.710.20.0
Mar / -6°779.78.211.60.1
Apr11° / 8810.84.113.12.6
May16° / 10010.80.414.45.0
Jun19° / 11°899.8015.15.9
Jul22° / 15°11411.3014.86.2
Aug24° / 17°15913.1013.86.2
Sep21° / 12°17112.5012.35.9
Oct15° / 11510.20.110.84.7
Nov / -1°819.42.29.51.5
Dec / -9°7686.68.90.0

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 18% of April, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15347
25248
35149
45050
55050
64951
74951
84951
94852
104852
114753
124753
134852
144852
154753
164753
174753
184753
194852
204852
214852
224852
234852
244852
254852
264852
274852
284753
294654
304654

Chance of precipitation in April

Any precipitationSnow

Sarubetsu gets around 88 mm of rain and snow over 10.8 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 36% and peaks near 37% on the wettest days, and about 4 days bring snow.

0%10%20%30%40%50%151015202530
Rain chance (%)Snow chance (%)
13319
23318
33418
43518
53517
63617
73617
83717
93716
103716
113716
123716
133715
143715
153715
163714
173714
183714
193713
203613
213612
223511
233511
243410
25349
26348
27348
28347
29346
30336

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

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 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over April. Sunrise moves from 5:18 AM to 4:30 AM, and sunset from 5:44 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:185:44
212.55:165:46
312.55:155:47
412.65:135:48
512.65:115:49
612.75:095:50
712.75:075:51
812.85:065:53
912.85:045:54
1012.95:025:55
1112.95:005:56
1213.04:595:57
1313.04:575:58
1413.14:556:00
1513.14:546:01
1613.24:526:02
1713.24:506:03
1813.34:486:04
1913.34:476:05
2013.44:456:07
2113.44:446:08
2213.44:426:09
2313.54:406:10
2413.54:396:11
2513.64:376:12
2613.64:366:14
2713.74:346:15
2813.74:336:16
2913.84:316:17
3013.84:306:18

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.1 kWh/m².

For context, solar energy here swings from a low near 1.93 kWh/m² to a high of 5.16 kWh/m² in May across the year — April's 5.1 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in April

Hazard calendar for Sarubetsu

In seasonPeak

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

Sarubetsu 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 Sarubetsu?

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

2.6
Sightseeing
7th-best month of the year
0.0
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Sarubetsu.

What to pack for Sarubetsu in April

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

In April, Sarubetsu sees daytime highs around 11°C and nights near 0°C. Pack a warm layer. Worth having: rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Sarubetsu in April

The nearest coast averages about 3°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 36 km away) is warmest in August at about 18°C and coldest in February near 1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan3Bracing
Feb1Bracing
Mar1Bracing
Apr3Bracing
May6Bracing
Jun11Bracing
Jul15Cool
Aug18Cool
Sep17Cool
Oct14Bracing
Nov10Bracing
Dec7Bracing

UV index in Sarubetsu in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sarubetsu peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5High
May7Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Sarubetsu 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 Sarubetsu is worst in April — around 15 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1315 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar14Moderate
Apr15Moderate
May13Moderate
Jun9Good
Jul9Good
Aug8Good
Sep7Good
Oct8Good
Nov7Good
Dec6Good
Location & terrain

Where is Sarubetsu?

Sarubetsu sits at 42.9°N, 143.3°E, 25 m above sea level, in Japan. The nearest listed city is Obihiro, 12 km away.

Topography around Sarubetsu

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

Within 3 km, the terrain around Sarubetsu has only modest variations in elevation — a maximum elevation change of 155 m around an average of 86 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 333 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,032 m.

The land around Sarubetsu is covered by cropland (52%) and trees (40%) within 3 km, trees (43%) and cropland (42%) within 16 km, and trees (65%) within 80 km.

3 km
155 m
16 km
333 m
80 km
2,032 m
treesgrasslandcroplandartificial surfaceswater
April weather nearby: Obihiro 12 km · Otofuke 17 km · Memuro-minami 25 km · Kushiro 85 km · Furano 94 km · Shimo-furano 94 km · Shizunai-furukawachō 99 km · Kitami 113 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 Sarubetsu (42.8724°, 143.3376°, elevation 25 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).