Sayama weather in March

In March, Sayama sees average daytime highs of 12°C and overnight lows near 3°C, with 122 mm of precipitation across 12.4 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 10°C in the first days to 14°C by the end. The sky is clear or mostly clear about 23% 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 Sayama's 9th-clearest and 1st-windiest month. For the whole year in context, see Sayama's year-round climate.

Daytime high
12°
9th warmest
Overnight low
4th coldest
Precipitation
122 mm
12.4 wet days
Daylight
11 h 42 min
6:15 AM – 5:59 PM
Cloud cover
64%
9th clearest
Wind
10 km/h
1st windiest
Solar energy
4.17 kWh/m²
Travel score
3.1
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 10°C in the first days to 14°C by the end.

A typical March day in Sayama reaches about 12°C in the afternoon and slips back to 3°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 7°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)
1101
2102
3102
4102
5112
6112
7112
8112
9112
10112
11112
12122
13122
14122
15123
16123
17123
18123
19133
20133
21133
22133
23134
24134
25144
26144
27144
28144
29145
30155
31155

How March really feels in Sayama

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.

Sayama 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 / -0°647.92.39.91.1
Feb / 708.92.310.71.5
Mar12° / 12212.40.611.73.1
Apr18° / 13311.7012.95.4
May23° / 13°15311.6013.86.4
Jun26° / 18°20514.6014.35.6
Jul30° / 22°23917.6014.14.2
Aug31° / 23°14013.5013.34.1
Sep27° / 19°18712.9012.25.8
Oct21° / 13°1619.9011.16.6
Nov16° / 847.6010.25.1
Dec10° / 657.719.72.4

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 57%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54456
64456
74456
84555
94555
104654
114555
124555
134555
144456
154456
164456
174357
184357
194357
204258
214159
224258
234258
244258
254159
264159
274258
284258
294258
304456
314456

Chance of precipitation in March

Any precipitationSnow

Sayama gets around 122 mm of rain and snow over 12.4 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 40% and peaks near 41% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1374
2374
3383
4383
5393
6393
7393
8403
9403
10403
11403
12403
13403
14412
15412
16412
17402
18402
19402
20401
21401
22401
23401
24401
25401
26401
27401
28401
29401
30401
31401

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
22991
23991
24991
25991
26991
27991
28991
29991
30982
31982

Wind in March

Winds average 10 km/h in March, the windiest month of the year.

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 6:35 AM to 5:53 AM, and sunset from 5:46 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.26:355:46
211.26:345:46
311.26:325:47
411.36:315:48
511.36:305:49
611.46:285:50
711.46:275:51
811.46:265:52
911.56:245:53
1011.56:235:53
1111.56:225:54
1211.66:205:55
1311.66:195:56
1411.76:185:57
1511.76:165:58
1611.76:155:59
1711.86:135:59
1811.86:126:00
1911.86:116:01
2011.96:096:02
2111.96:086:03
2212.06:066:03
2312.06:056:04
2412.06:036:05
2512.16:026:06
2612.16:006:07
2712.15:596:07
2812.25:586:08
2912.25:566:09
3012.35:556:10
3112.35:536:11

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.17 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.41 kWh/m² in May across the year — March's 4.17 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Moderate
114.0Bright
124.1Bright
134.1Bright
144.1Bright
154.2Bright
164.2Bright
174.2Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.4Bright
234.4Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.6Bright
294.6Bright
304.7Bright
314.7Bright
Planning a trip in March

Hazard calendar for Sayama

In seasonPeak

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

Sayama 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 Sayama?

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

3.1
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 Sayama.

What to pack for Sayama in March

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

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

a warm layerrain gear

Sea temperature near Sayama in March

The nearest coast averages about 13°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 44 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 Jun 6 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
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Sayama 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 Sayama peaks around July 10 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 10UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Sayama 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 Sayama 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 Sayama?

Sayama sits at 34.9°N, 135.8°E, 14 m above sea level, in Japan. The nearest listed city is Yawata, 4.0 km away.

Topography around Sayama

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

Within 3 km, the terrain around Sayama has only modest variations in elevation — a maximum elevation change of 54 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 683 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,882 m.

The land around Sayama is covered by artificial surfaces (57%) and cropland (29%) within 3 km, trees (49%) and artificial surfaces (38%) within 16 km, and trees (65%) within 80 km.

3 km
54 m
16 km
683 m
80 km
1,882 m
treesgrasslandcroplandartificial surfacesbare terrainwater
March weather nearby: Yawata 4.0 km · Uji 5.0 km · Tanabe 6.0 km · Jōyō 6.0 km · Oyamazaki 6.0 km · Kōtari 7.0 km · Minase 8.0 km · Kyōtanabe 8.0 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 Sayama (34.8753°, 135.7502°, elevation 14 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).