Yamaguchi weather in March

In March, Yamaguchi sees average daytime highs of 14°C and overnight lows near 5°C, with 117 mm of precipitation across 11.4 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 12°C in the first days to 16°C by the end. The sky is clear or mostly clear about 28% 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 Yamaguchi's 6th-clearest and 4th-windiest month. For the whole year in context, see Yamaguchi's year-round climate.

Daytime high
14°
9th warmest
Overnight low
4th coldest
Precipitation
117 mm
11.4 wet days
Daylight
11 h 42 min
6:32 AM – 6:16 PM
Cloud cover
61%
6th clearest
Wind
10 km/h
4th windiest
Solar energy
4.3 kWh/m²
Travel score
3.8
out of 10

Yamaguchi is capital city of Yamaguchi prefecture.

Density
190/km²
people per km²
Founded
1929

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 12°C in the first days to 16°C by the end.

A typical March day in Yamaguchi reaches about 14°C in the afternoon and slips back to 5°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 18°C. Set against its neighbours, March runs about 4°C warmer than February and about 5°C cooler than April.

10°20°151015202531
Avg high (°C)Avg low (°C)
1123
2124
3124
4124
5124
6124
7124
8134
9134
10134
11134
12134
13134
14135
15145
16145
17145
18145
19145
20145
21145
22156
23156
24156
25156
26156
27156
28156
29167
30167
31167

How March really feels in Yamaguchi

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

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Yamaguchi 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 / 629.72.2101.7
Feb10° / 709.81.810.72.2
Mar14° / 11711.40.411.73.8
Apr19° / 13010.6012.85.9
May23° / 14°15010.5013.86.7
Jun26° / 19°24914.3014.25.7
Jul30° / 23°28316.30144.2
Aug31° / 24°16714.2013.33.9
Sep28° / 20°17812.4012.25.7
Oct23° / 14°978.1011.17.1
Nov17° / 788.2010.25.6
Dec11° / 649.70.99.82.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 18% of March, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34258
44258
54357
64456
74456
84654
94654
104753
114753
124753
134753
144753
154852
164753
174753
184852
194753
204852
214753
224852
234852
244852
254753
264852
274852
284852
294852
304852
314852

Chance of precipitation in March

Any precipitationSnow

Yamaguchi gets around 117 mm of rain and snow over 11.4 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 36% and peaks near 37% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1373
2373
3373
4373
5373
6373
7373
8372
9372
10362
11362
12362
13362
14362
15361
16361
17361
18361
19361
20371
21371
22370
23370
24360
25360
26360
27360
28360
29360
30360
31350

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
71000
81000
91000
101000
111000
121000
131000
141000
15991
16991
17991
18991
19991
20991
21991
22991
23991
24982
25982
26982
27973
28973
29973
30964
31955

Wind in March

Winds average 10 km/h in March.

Across March, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 6:51 AM to 6:11 AM, and sunset from 6:03 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:516:03
211.26:506:04
311.36:496:05
411.36:486:06
511.36:466:07
611.46:456:08
711.46:446:08
811.46:436:09
911.56:416:10
1011.56:406:11
1111.66:396:12
1211.66:376:13
1311.66:366:13
1411.76:346:14
1511.76:336:15
1611.76:326:16
1711.86:306:17
1811.86:296:17
1911.86:286:18
2011.96:266:19
2111.96:256:20
2212.06:236:21
2312.06:226:21
2412.06:216:22
2512.16:196:23
2612.16:186:24
2712.16:166:24
2812.26:156:25
2912.26:136:26
3012.26:126:27
3112.36:116:28

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.3 kWh/m².

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 5.6 kWh/m² in May across the year — March's 4.3 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.8Moderate
43.9Moderate
53.9Moderate
64.0Moderate
74.0Moderate
84.0Bright
94.1Bright
104.1Bright
114.2Bright
124.2Bright
134.2Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.4Bright
194.4Bright
204.4Bright
214.5Bright
224.5Bright
234.5Bright
244.6Bright
254.6Bright
264.6Bright
274.7Bright
284.7Bright
294.7Bright
304.8Bright
314.8Bright
Planning a trip in March

Hazard calendar for Yamaguchi

In seasonPeak

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

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

Yamaguchi's rainy season runs April–September, 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 Yamaguchi?

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

3.8
Sightseeing
9th-best month of the year
0.1
Beach & pool
9th-best month of the year

March is a weaker month for outdoor sightseeing in Yamaguchi.

What to pack for Yamaguchi in March

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

In March, Yamaguchi sees daytime highs around 14°C and nights near 5°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Yamaguchi in March

The nearest coast averages about 12°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 35 km away) is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 7 to Nov 11 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Yamaguchi 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 Yamaguchi peaks around June 21 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Yamaguchi 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 Yamaguchi is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1023 µg/m³Oct 1111 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr23Moderate
May20Moderate
Jun16Moderate
Jul13Moderate
Aug15Moderate
Sep11Good
Oct11Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Yamaguchi?

Yamaguchi sits at 34.2°N, 131.5°E, 157 m above sea level, in Japan. The nearest listed city is Ogōri-shimogō, 11 km away.

Topography around Yamaguchi

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

Within 3 km, the terrain around Yamaguchi has significant variations in elevation — a maximum elevation change of 424 m around an average of 118 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 780 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Yamaguchi is covered by trees (60%) and artificial surfaces (35%) within 3 km, trees (83%) within 16 km, and water (51%) and trees (42%) within 80 km.

3 km
424 m
16 km
780 m
80 km
1,369 m
treesgrasslandcroplandartificial surfaceswater
March weather nearby: Ogōri-shimogō 11 km · Hōfu 17 km · Mine 23 km · Hagi 25 km · Sanyōonoda 33 km · Onoda 33 km · Nagato 33 km · Ube 33 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 Yamaguchi (34.1833°, 131.4667°, elevation 157 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).