Ōmihachiman weather in March

In March, Ōmihachiman sees average daytime highs of 12°C and overnight lows near 3°C, with 116 mm of precipitation across 13.5 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 9°C in the first days to 14°C by the end. The sky is clear or mostly clear about 20% 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 Ōmihachiman's 8th-clearest and 1st-windiest month. For the whole year in context, see Ōmihachiman's year-round climate.

Daytime high
12°
9th warmest
Overnight low
4th coldest
Precipitation
116 mm
13.5 wet days
Daylight
11 h 42 min
6:13 AM – 5:57 PM
Cloud cover
66%
8th clearest
Wind
11 km/h
1st windiest
Solar energy
4.11 kWh/m²
Travel score
2.7
out of 10

Ōmihachiman is city in Shiga Prefecture, Japan.

Density
1,068/km²
people per km²
Founded
2010

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 9°C in the first days to 14°C by the end.

A typical March day in Ōmihachiman reaches about 12°C in the afternoon and slips back to 3°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 17°C. Set against its neighbours, March runs about 4°C warmer than February and about 6°C cooler than April.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
192
292
392
4102
5102
6102
7102
8102
9102
10112
11113
12113
13113
14113
15113
16113
17123
18123
19123
20124
21124
22124
23134
24134
25134
26134
27135
28135
29145
30145
31145

How March really feels in Ōmihachiman

Once humidity and wind are folded in, March averages 0 days that feel above 32°C and 16 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
16
wind chill below the day's low

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

Ōmihachiman weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8113.97.59.90.7
Feb / 7612.76.510.71.0
Mar12° / 11613.52.111.72.7
Apr17° / 12311.60.112.95.1
May22° / 13°14811.6013.86.3
Jun25° / 18°18614014.35.7
Jul29° / 22°21015.9014.14.5
Aug31° / 23°12212.4013.34.3
Sep27° / 20°17912.3012.25.9
Oct21° / 14°15210.8011.16.4
Nov15° / 819010.24.7
Dec / 7511.63.19.72.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 21% of March, with mostly cloudy or overcast conditions the remaining 59%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43961
54060
64060
74060
84159
94258
104258
114159
124258
134258
144258
154258
164258
174159
184159
194159
204060
214159
224159
234159
244159
254159
264159
274258
284159
294159
304258
314258

Chance of precipitation in March

Any precipitationSnow

Ōmihachiman gets around 116 mm of rain and snow over 13.5 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 44% and peaks near 45% on the wettest days, and about 2 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14313
24413
34412
44412
54511
64511
74511
84510
94510
10459
11459
12458
13458
14457
15457
16446
17446
18445
19445
20444
21434
22434
23433
24433
25423
26423
27423
28413
29413
30403
31402

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 (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
31991

Wind in March

Winds average 11 km/h in March, the windiest month of the year.

Across March, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 6:34 AM to 5:52 AM, and sunset from 5:44 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:345:44
211.26:325:45
311.26:315:46
411.36:305:47
511.36:295:48
611.46:275:48
711.46:265:49
811.46:255:50
911.56:235:51
1011.56:225:52
1111.56:205:53
1211.66:195:54
1311.66:185:55
1411.76:165:55
1511.76:155:56
1611.76:135:57
1711.86:125:58
1811.86:115:59
1911.86:096:00
2011.96:086:00
2111.96:066:01
2212.06:056:02
2312.06:036:03
2412.06:026:04
2512.16:016:04
2612.15:596:05
2712.15:586:06
2812.25:566:07
2912.25:556:08
3012.35:536:09
3112.35:526:09

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.11 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 5.32 kWh/m² in May across the year — March's 4.11 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.8Moderate
73.8Moderate
83.9Moderate
93.9Moderate
103.9Moderate
114.0Moderate
124.0Bright
134.0Bright
144.1Bright
154.1Bright
164.1Bright
174.2Bright
184.2Bright
194.2Bright
204.3Bright
214.3Bright
224.3Bright
234.4Bright
244.4Bright
254.4Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.6Bright
314.6Bright
Planning a trip in March

Hazard calendar for Ōmihachiman

In seasonPeak

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

Ōmihachiman 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 March a good time to visit Ōmihachiman?

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

2.7
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 Ōmihachiman.

What to pack for Ōmihachiman in March

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

In March, Ōmihachiman sees daytime highs around 12°C and nights near 3°C. Pack a warm layer. Worth having: rain gear. About 14 days see rain.

a warm layerrain gear

Sea temperature near Ōmihachiman in March

The nearest coast averages about 14°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 56 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Nov 9 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul26Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Ōmihachiman in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March 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 Ōmihachiman peaks around July 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highVery highModerateJul 14UV 10Dec 23UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ōmihachiman 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 Ōmihachiman is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1723 µg/m³Oct 1812 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar22Moderate
Apr24Moderate
May22Moderate
Jun19Moderate
Jul17Moderate
Aug17Moderate
Sep14Moderate
Oct12Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Ōmihachiman?

Ōmihachiman sits at 35.1°N, 136.1°E, 91 m above sea level, in Japan. The nearest listed city is Yasu, 8.0 km away.

Topography around Ōmihachiman

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

Within 3 km, the terrain around Ōmihachiman has only modest variations in elevation — a maximum elevation change of 198 m around an average of 95 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 355 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,602 m.

The land around Ōmihachiman is covered by cropland (52%) and artificial surfaces (37%) within 3 km, cropland (31%), water (27%) and artificial surfaces (21%) within 16 km, and trees (58%) within 80 km.

3 km
198 m
16 km
355 m
80 km
1,602 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Yasu 8.0 km · Youkaichi 9.0 km · Echigawa 10 km · Moriyama 12 km · Rittō 14 km · Konan 14 km · Kitahama 17 km · Kusatsu 17 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 Ōmihachiman (35.1286°, 136.0976°, elevation 91 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).