Shiraoi weather in March

In March, Shiraoi sees average daytime highs of 2°C and overnight lows near -4°C, with 64 mm of precipitation across 9.8 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 0°C in the first days to 4°C by the end. The sky is clear or mostly clear about 23% of the time in March, and the air most often feels dry.

Daylight stretches from about 10 h 54 min at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Shiraoi's 4th-clearest and 5th-windiest month. For the whole year in context, see Shiraoi's year-round climate.

Daytime high
9th warmest
Overnight low
-4°
4th coldest
Precipitation
64 mm
9.8 wet days
Daylight
11 h 36 min
5:55 AM – 5:34 PM
Cloud cover
61%
4th clearest
Wind
15 km/h
5th windiest
Solar energy
4.43 kWh/m²
Travel score
0.0
out of 10

Shiraoi is town in Shiraoi district, Hokkaidō, Japan.

Density
42/km²
people per km²
Founded
1954

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 0°C in the first days to 4°C by the end.

A typical March day in Shiraoi reaches about 2°C in the afternoon and slips back to -4°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 5°C. Set against its neighbours, March runs about 3°C warmer than February and about 5°C cooler than April.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
10-6
20-5
30-5
40-5
51-5
61-5
71-5
81-5
91-5
101-4
111-4
121-4
132-4
142-4
152-4
162-4
172-3
182-3
192-3
203-3
213-3
223-3
233-2
243-2
253-2
264-2
274-2
284-2
294-1
304-1
314-1

How March really feels in Shiraoi

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 31 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
31
9 feel bitter (≤ -10°C)

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

Shiraoi weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -7°477.18.29.20.0
Feb-1° / -7°456.97.710.30.0
Mar / -4°649.88.711.60.0
Apr / 8210.83.113.10.9
May12° / 11312.20.114.43.0
Jun16° / 12°9810.6015.14.7
Jul20° / 16°14313.3014.85.5
Aug22° / 18°19413.9013.75.8
Sep20° / 15°17713.5012.35.6
Oct14° / 11411.10.110.84.0
Nov / 8410.42.89.60.9
Dec / -5°648.88.68.90.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 26% of March, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34753
44654
54654
64654
74654
84654
94654
104555
114654
124654
134654
144654
154654
164852
174852
184852
194951
205050
215050
225149
235149
245248
255248
265248
275248
285248
295347
305248
315347

Chance of precipitation in March

Any precipitationSnow

Shiraoi gets around 64 mm of rain and snow over 9.8 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 31% and peaks near 33% on the wettest days, and about 9 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13031
23031
33031
43031
53131
63131
73130
83130
93130
103130
113129
123129
133129
143129
153128
163128
173127
183127
193126
203126
213126
223125
233125
243224
253224
263223
273223
283222
293221
303220
313319

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March 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%151015202531
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
31100

Wind in March

Winds average 15 km/h in March.

Across March, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3113light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 10 h 54 min at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over March. Sunrise moves from 6:20 AM to 5:28 AM, and sunset from 5:15 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:205:15
211.06:195:17
311.06:175:18
411.16:165:19
511.16:145:20
611.26:125:21
711.26:115:23
811.36:095:24
911.36:075:25
1011.36:055:26
1111.46:045:28
1211.46:025:29
1311.56:005:30
1411.55:585:31
1511.65:575:32
1611.65:555:34
1711.75:535:35
1811.75:515:36
1911.85:505:37
2011.85:485:38
2111.95:465:39
2211.95:445:41
2312.05:435:42
2412.05:415:43
2512.15:395:44
2612.15:375:45
2712.25:355:46
2812.25:345:48
2912.35:325:49
3012.35:305:50
3112.45:285:51

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.43 kWh/m².

For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 5.48 kWh/m² in May across the year — March's 4.43 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.8Moderate
33.8Moderate
43.9Moderate
53.9Moderate
64.0Moderate
74.0Bright
84.1Bright
94.1Bright
104.2Bright
114.2Bright
124.3Bright
134.3Bright
144.3Bright
154.4Bright
164.4Bright
174.5Bright
184.5Bright
194.6Bright
204.6Bright
214.7Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.9Bright
284.9Bright
294.9Bright
305.0Bright
315.0Bright
Planning a trip in March

Hazard calendar for Shiraoi

In seasonPeak

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

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

Shiraoi's rainy season runs May–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 March a good time to visit Shiraoi?

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

0.0
Sightseeing
9th-best month of the year
0.0
Beach & pool
7th-best month of the year

March is a weaker month for outdoor sightseeing in Shiraoi.

What to pack for Shiraoi in March

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

In March, Shiraoi sees daytime highs around 2°C and nights near -4°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Shiraoi in March

The nearest coast averages about 4°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 20 km away) is warmest in August at about 20°C and coldest in March near 4°C.

It's comfortable for a long swim from Aug 17 to Aug 28 — about 0.4 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar4Bracing
Apr5Bracing
May8Bracing
Jun13Bracing
Jul17Cool
Aug20Refreshing
Sep20Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Shiraoi in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Shiraoi peaks around August 18 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun6High
Jul5Moderate
Aug9Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Shiraoi in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Shiraoi is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1219 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May18Moderate
Jun12Moderate
Jul11Good
Aug10Good
Sep9Good
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Shiraoi?

Shiraoi sits at 42.5°N, 141.3°E, 5 m above sea level, in Japan. The nearest listed city is Noboribetsu, 18 km away.

Topography around Shiraoi

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

Within 3 km, the terrain around Shiraoi has only modest variations in elevation — a maximum elevation change of 114 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,858 m.

The land around Shiraoi is covered by water (38%) and trees (35%) within 3 km, trees (47%) and water (46%) within 16 km, and trees (44%) and water (41%) within 80 km.

3 km
114 m
16 km
1,028 m
80 km
1,858 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Noboribetsu 18 km · Tomakomai 23 km · Chitose 39 km · Muroran 39 km · Date 41 km · Eniwa 42 km · Kitahiroshima 51 km · Sapporo 57 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 Shiraoi (42.55°, 141.35°, elevation 5 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).