Kozakai-chō weather in March

In March, Kozakai-chō sees average daytime highs of 14°C and overnight lows near 6°C, with 129 mm of rain across 10.3 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 12°C in the first days to 15°C by the end. The sky is clear or mostly clear about 40% 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 Kozakai-chō's 5th-clearest and 4th-windiest month. For the whole year in context, see Kozakai-chō's year-round climate.

Daytime high
14°
9th warmest
Overnight low
4th coldest
Rainfall
129 mm
10.3 wet days
Daylight
11 h 42 min
6:08 AM – 5:52 PM
Cloud cover
53%
5th clearest
Wind
19 km/h
4th windiest
Solar energy
4.54 kWh/m²
Travel score
4.0
out of 10

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 15°C by the end.

A typical March day in Kozakai-chō reaches about 14°C in the afternoon and slips back to 6°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 17°C. Set against its neighbours, March runs about 3°C warmer than February and about 5°C cooler than April.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1125
2125
3125
4125
5125
6125
7135
8135
9135
10136
11136
12136
13136
14136
15136
16146
17146
18146
19146
20147
21147
22147
23147
24157
25157
26157
27158
28158
29158
30158
31168

How March really feels in Kozakai-chō

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.

Kozakai-chō 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 daysDaylight (hours)Travel score
Jan10° / 656.19.92.3
Feb10° / 777.110.72.6
Mar14° / 12910.311.74.0
Apr18° / 11°14310.312.85.8
May22° / 16°1641113.86.5
Jun25° / 20°23214.714.35.7
Jul29° / 24°22714.914.14.8
Aug30° / 25°13314.313.34.4
Sep27° / 22°23014.412.25.5
Oct22° / 16°21511.611.16.6
Nov17° / 11°1068.210.25.8
Dec12° / 666.49.73.6

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25743
35842
45842
55743
65743
75842
85842
95842
105842
115842
125842
135842
145842
155842
165842
175743
185743
195743
205644
215644
225545
235545
245446
255446
265446
275446
285446
295446
305446
315446

Chance of precipitation in March

Any precipitation

Kozakai-chō gets around 129 mm of rain 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 rain averages around 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
131
231
332
432
532
631
731
831
931
1031
1131
1231
1332
1432
1532
1632
1733
1833
1933
2033
2134
2234
2335
2435
2535
2635
2735
2835
2935
3035
3135

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20982
21982
22982
23982
24982
25982
26982
27982
28982
29973
30973
31964

Wind in March

Winds average 19 km/h in March.

Across March, daily wind ranges from about 18 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

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 6:28 AM to 5:47 AM, and sunset from 5:39 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:285:39
211.26:275:40
311.36:265:41
411.36:255:42
511.36:235:43
611.46:225:44
711.46:215:44
811.46:195:45
911.56:185:46
1011.56:175:47
1111.56:155:48
1211.66:145:49
1311.66:135:50
1411.76:115:50
1511.76:105:51
1611.76:085:52
1711.86:075:53
1811.86:065:54
1911.86:045:55
2011.96:035:55
2111.96:015:56
2212.06:005:57
2312.05:585:58
2412.05:575:59
2512.15:555:59
2612.15:546:00
2712.15:536:01
2812.25:516:02
2912.25:506:03
3012.35:486:03
3112.35:476:04

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.54 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 5.48 kWh/m² in May across the year — March's 4.54 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.2Bright
54.2Bright
64.2Bright
74.3Bright
84.3Bright
94.3Bright
104.4Bright
114.4Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.6Bright
174.6Bright
184.6Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.9Bright
294.9Bright
304.9Bright
315.0Bright
Planning a trip in March

Hazard calendar for Kozakai-chō

In seasonPeak

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

Kozakai-chō 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 Kozakai-chō?

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

4.0
Sightseeing
9th-best month of the year
0.1
Beach & pool
9th-best month of the year

March is a reasonable time to visit Kozakai-chō for sightseeing.

What to pack for Kozakai-chō in March

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

In March, Kozakai-chō sees daytime highs around 14°C and nights near 6°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Kozakai-chō in March

The nearest coast averages about 16°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 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 26 to Nov 26 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Kozakai-chō 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 Kozakai-chō peaks around July 11 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateJul 11UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kozakai-chō 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 Kozakai-chō is worst in April — around 25 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 15 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1325 µg/m³Jul 2415 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb19Moderate
Mar25Moderate
Apr25Moderate
May24Moderate
Jun20Moderate
Jul15Moderate
Aug15Moderate
Sep16Moderate
Oct18Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Kozakai-chō?

Kozakai-chō sits at 34.8°N, 137.4°E, 7 m above sea level, in Japan. The nearest listed city is Toyokawa, 4.0 km away.

Topography around Kozakai-chō

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

Within 3 km, the terrain around Kozakai-chō has only modest variations in elevation — a maximum elevation change of 28 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 787 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,181 m.

The land around Kozakai-chō is covered by artificial surfaces (63%) and cropland (24%) within 3 km, trees (43%) and artificial surfaces (25%) within 16 km, and trees (43%) and water (36%) within 80 km.

3 km
28 m
16 km
787 m
80 km
2,181 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Toyokawa 4.0 km · Toyohashi 4.0 km · Gamagōri 12 km · Tahara 17 km · Shinshiro 17 km · Kosai 19 km · Kōta 19 km · Arai 23 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 Kozakai-chō (34.8°, 137.3589°, 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).