Tomakomai weather in March

In March, Tomakomai sees average daytime highs of 2°C and overnight lows near -4°C, with 63 mm of precipitation across 10.3 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 10th-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 22% 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 Tomakomai's 6th-clearest and 3rd-windiest month. For the whole year in context, see Tomakomai's year-round climate.

Daytime high
9th warmest
Overnight low
-4°
4th coldest
Precipitation
63 mm
10.3 wet days
Daylight
11 h 36 min
5:54 AM – 5:32 PM
Cloud cover
62%
6th clearest
Wind
12 km/h
3rd windiest
Solar energy
4.37 kWh/m²
Travel score
0.0
out of 10

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 Tomakomai 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 6°C. Set against its neighbours, March runs about 4°C warmer than February and about 5°C cooler than April.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
10-6
20-6
30-6
41-6
51-5
61-5
71-5
81-5
91-5
101-5
111-5
122-4
132-4
142-4
152-4
162-4
172-3
183-3
193-3
203-3
213-3
223-3
233-2
244-2
254-2
264-2
274-2
284-2
294-1
305-1
315-1

How March really feels in Tomakomai

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
7 feel bitter (≤ -10°C)

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

Tomakomai weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-2° / -7°447.18.89.20.0
Feb-1° / -7°437.3910.30.0
Mar / -4°6310.39.311.60.0
Apr / 7811.53.213.11.1
May13° / 10911.80.114.43.2
Jun16° / 12°10011.3015.14.8
Jul20° / 16°13813.7014.85.6
Aug22° / 18°19714.5013.75.8
Sep20° / 15°17715012.35.4
Oct14° / 11011.80.210.84.0
Nov / 7810.839.60.9
Dec / -4°638.78.68.90.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 27% 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 (%)
14852
24753
34753
44753
54654
64753
74753
84753
94654
104654
114654
124654
134654
144654
154654
164753
174852
184852
194852
204852
215050
225050
235149
245149
255149
265248
275149
285248
295248
305248
315248

Chance of precipitation in March

Any precipitationSnow

Tomakomai gets around 63 mm of rain and snow over 10.3 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 33% and peaks near 35% on the wettest days, and about 9 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13133
23133
33232
43232
53232
63232
73232
83332
93331
103331
113331
123331
133331
143331
153430
163430
173430
183330
193330
203329
213329
223328
233428
243427
253427
263426
273526
283525
293524
303523
313522

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 12 km/h in March.

Across March, 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.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

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 6:19 AM to 5:27 AM, and sunset from 5:14 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.96:195:14
211.06:185:15
311.06:165:17
411.16:155:18
511.16:135:19
611.26:115:20
711.26:105:22
811.26:085:23
911.36:065:24
1011.36:045:25
1111.46:035:26
1211.46:015:28
1311.55:595:29
1411.55:585:30
1511.65:565:31
1611.65:545:32
1711.75:525:34
1811.75:505:35
1911.85:495:36
2011.85:475:37
2111.95:455:38
2211.95:435:40
2312.05:415:41
2412.05:405:42
2512.15:385:43
2612.15:365:44
2712.25:345:45
2812.25:325:47
2912.35:315:48
3012.35:295:49
3112.45:275:50

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.37 kWh/m².

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 5.41 kWh/m² in May across the year — March's 4.37 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.8Moderate
43.8Moderate
53.9Moderate
63.9Moderate
74.0Moderate
84.0Bright
94.1Bright
104.1Bright
114.2Bright
124.2Bright
134.2Bright
144.3Bright
154.3Bright
164.4Bright
174.4Bright
184.5Bright
194.5Bright
204.5Bright
214.6Bright
224.6Bright
234.7Bright
244.7Bright
254.7Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in March

Hazard calendar for Tomakomai

In seasonPeak

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

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

Tomakomai'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 Tomakomai?

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 Tomakomai.

What to pack for Tomakomai in March

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

In March, Tomakomai 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 Tomakomai in March

The nearest coast averages about 3°C in March — 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 20°C and coldest in March near 3°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar3Bracing
Apr5Bracing
May8Bracing
Jun13Bracing
Jul17Cool
Aug20Refreshing
Sep20Cool
Oct16Cool
Nov13Bracing
Dec10Bracing

UV index in Tomakomai in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tomakomai peaks around August 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighHighVery highHighModerateLowAug 18UV 8Dec 19UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May7Very high
Jun6High
Jul5Moderate
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Tomakomai 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 Tomakomai is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1119 µg/m³Dec 158 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr19Moderate
May18Moderate
Jun13Moderate
Jul12Good
Aug10Good
Sep9Good
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Tomakomai?

Tomakomai sits at 42.6°N, 141.6°E, 7 m above sea level, in Japan. The nearest listed city is Chitose, 21 km away.

Topography around Tomakomai

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

Within 3 km, the terrain around Tomakomai has only modest variations in elevation — a maximum elevation change of 58 m around an average of 9 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 439 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,859 m.

The land around Tomakomai is covered by artificial surfaces (47%) and water (31%) within 3 km, water (42%) and trees (41%) within 16 km, and trees (51%) and water (33%) within 80 km.

3 km
58 m
16 km
439 m
80 km
1,859 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Chitose 21 km · Shiraoi 23 km · Eniwa 29 km · Kitahiroshima 38 km · Noboribetsu 40 km · Sapporo 52 km · Ebetsu 53 km · Muroran 62 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 Tomakomai (42.6369°, 141.6033°, elevation 7 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).