Shōwa weather in March

In March, Shōwa sees average daytime highs of 7°C and overnight lows near -3°C, with 125 mm of precipitation across 12.8 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 5°C in the first days to 9°C by the end. The sky is clear or mostly clear about 32% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 12 min at the start of March to 12 h 18 min by month's end. Set against the rest of the year, March is Shōwa's 5th-clearest and 1st-windiest month. For the whole year in context, see Shōwa's year-round climate.

Daytime high
9th warmest
Overnight low
-3°
4th coldest
Precipitation
125 mm
12.8 wet days
Daylight
11 h 42 min
6:04 AM – 5:47 PM
Cloud cover
58%
5th clearest
Wind
6 km/h
1st windiest
Solar energy
4.66 kWh/m²
Travel score
0.9
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 5°C in the first days to 9°C by the end.

A typical March day in Shōwa reaches about 7°C in the afternoon and slips back to -3°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 13°C. Set against its neighbours, March runs about 4°C warmer than February and about 6°C cooler than April.

-10°10°20°151015202531
Avg high (°C)Avg low (°C)
15-5
25-4
35-4
45-4
55-4
66-4
76-4
86-4
96-4
106-3
116-3
126-3
137-3
147-3
157-3
167-3
177-2
187-2
198-2
208-2
218-2
228-2
238-1
249-1
259-1
269-1
279-1
2890
29100
30100
31100

How March really feels in Shōwa

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
wind chill below the day's low

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

Shōwa weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°646.879.90.0
Feb / -6°727.96.510.70.0
Mar / -3°12512.87.611.70.9
Apr13° / 12112.62.112.93.5
May18° / 13012.80.113.95.4
Jun21° / 13°17716.3014.45.2
Jul25° / 17°19917.4014.25.4
Aug26° / 18°13916.8013.35.6
Sep22° / 15°18514.6012.25.7
Oct17° / 18613011.14.9
Nov11° / 859.20.510.12.8
Dec / -3°607.44.29.60.3

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 20% of March, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35347
45347
55446
65446
75446
85446
95545
105545
115545
125545
135545
145446
155446
165446
175347
185347
195248
205248
215149
225050
235050
244951
254951
264951
274951
284852
294852
304951
314951

Chance of precipitation in March

Any precipitationSnow

Shōwa gets around 125 mm of rain and snow over 12.8 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 40% and peaks near 44% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
13828
23828
33828
43828
53828
63828
73827
83827
93726
103726
113725
123725
133824
143824
153924
163924
174023
184123
194123
204223
214322
224322
234322
244421
254421
264421
274420
284319
294319
304318
314217

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 6 km/h in March, the windiest month of the year.

Across March, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 12 min at the start of March to 12 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over March. Sunrise moves from 6:24 AM to 5:42 AM, and sunset from 5:34 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:245:34
211.26:235:35
311.26:225:36
411.36:215:36
511.36:195:37
611.36:185:38
711.46:175:39
811.46:155:40
911.56:145:41
1011.56:125:42
1111.56:115:43
1211.66:105:44
1311.66:085:45
1411.66:075:45
1511.76:055:46
1611.76:045:47
1711.86:025:48
1811.86:015:49
1911.86:005:50
2011.95:585:51
2111.95:575:51
2212.05:555:52
2312.05:545:53
2412.05:525:54
2512.15:515:55
2612.15:495:56
2712.15:485:56
2812.25:465:57
2912.25:455:58
3012.35:435:59
3112.35:426:00

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.66 kWh/m².

For context, solar energy here swings from a low near 2.63 kWh/m² to a high of 5.51 kWh/m² in May across the year — March's 4.66 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.3Bright
34.3Bright
44.3Bright
54.4Bright
64.4Bright
74.4Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.9Bright
254.9Bright
264.9Bright
274.9Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in March

Is March a good time to visit Shōwa?

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

0.9
Sightseeing
9th-best month of the year
0.0
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Shōwa.

What to pack for Shōwa in March

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

In March, Shōwa sees daytime highs around 7°C and nights near -3°C. Pack a warm layer. Worth having: a heavy coat, rain gear and sun protection. About 13 days see rain.

a warm layera heavy coatrain gearsun protection

Sea temperature near Shōwa in March

The nearest coast averages about 15°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 57 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 30 to Nov 23 — about 5.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Shōwa in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Shōwa peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highExtremeVery highModerateJul 14UV 11Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Shōwa 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 Shōwa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 1810 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct12Moderate
Nov11Good
Dec10Good
Location & terrain

Where is Shōwa?

Shōwa sits at 35.6°N, 138.5°E, 272 m above sea level, in Japan. The nearest listed city is Ryūō, 4.0 km away.

Topography around Shōwa

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

Within 3 km, the terrain around Shōwa has only modest variations in elevation — a maximum elevation change of 36 m around an average of 264 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,834 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,735 m.

The land around Shōwa is covered by artificial surfaces (78%) within 3 km, trees (61%) and artificial surfaces (22%) within 16 km, and trees (81%) within 80 km.

3 km
36 m
16 km
1,834 m
80 km
3,735 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Ryūō 4.0 km · Chūō 5.0 km · Kofu 5.0 km · Minami-Alps 7.0 km · Kai 7.0 km · Minamiarupusu 7.0 km · Isawa 9.0 km · Fuefuki 9.0 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 Shōwa (35.6279°, 138.5351°, elevation 272 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. 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).