Toyohama weather in January

In January, Toyohama sees average daytime highs of 10°C and overnight lows near 6°C, with 73 mm of precipitation across 9.3 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 50% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of January to 10 h 18 min by month's end. Set against the rest of the year, January is Toyohama's 3rd-clearest and 1st-windiest month. For the whole year in context, see Toyohama's year-round climate.

Daytime high
10°
12th warmest
Overnight low
2nd coldest
Precipitation
73 mm
9.3 wet days
Daylight
9 h 54 min
7:04 AM – 4:59 PM
Cloud cover
46%
3rd clearest
Wind
27 km/h
1st windiest
Solar energy
2.95 kWh/m²
Travel score
2.2
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical January day in Toyohama reaches about 10°C in the afternoon and slips back to 6°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 12°C. Set against its neighbours, January runs about 3°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
1106
2106
3106
4106
5106
6106
7106
8106
9106
10106
11106
12106
13106
14106
15106
16105
1795
1895
1995
2095
2195
2295
2395
2495
2595
2695
2795
2895
2995
3095
3195

How January really feels in Toyohama

Once humidity and wind are folded in, January 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

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

Toyohama weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 739.30.59.92.2
Feb10° / 769.10.410.72.4
Mar13° / 12010.5011.73.6
Apr17° / 12°1299.9012.85.3
May20° / 16°15410013.86.3
Jun24° / 21°20913.2014.36.0
Jul27° / 24°18113014.15.8
Aug29° / 26°10810.9013.35.7
Sep26° / 23°21413012.26.2
Oct22° / 18°21511.1011.16.6
Nov17° / 13°998010.25.8
Dec12° / 688.50.19.73.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17822
27624
37624
47624
57624
67525
77426
87327
97327
107129
117030
126931
136832
146832
156733
166634
176535
186436
196436
206337
216337
226337
236337
246337
256337
266436
276436
286436
296634
306634
316634

Chance of precipitation in January

Any precipitationSnow

Toyohama gets around 73 mm of rain and snow over 9.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 30% and peaks near 32% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1280
2280
3280
4280
5280
6280
7280
8280
9291
10291
11291
12301
13301
14311
15312
16312
17312
18322
19322
20322
21322
22322
23322
24322
25322
26322
27312
28312
29312
30312
31312

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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 January

Winds average 27 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 26 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1326breezy
1426breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2027breezy
2127breezy
2227breezy
2327breezy
2427breezy
2527breezy
2627breezy
2727breezy
2827breezy
2927breezy
3027breezy
3127breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 42 min at the start of January to 10 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:04 AM to 6:58 AM, and sunset from 4:47 PM to 5:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:044:47
29.77:044:47
39.77:054:48
49.77:054:49
59.77:054:50
69.87:054:50
79.87:054:51
89.87:054:52
99.87:054:53
109.87:054:54
119.87:054:54
129.87:054:55
139.97:054:56
149.97:054:57
159.97:044:58
169.97:044:59
179.97:045:00
189.97:045:01
1910.07:035:02
2010.07:035:03
2110.07:035:04
2210.07:025:04
2310.17:025:05
2410.17:025:06
2510.17:015:07
2610.17:015:08
2710.27:005:09
2810.27:005:10
2910.26:595:11
3010.26:595:12
3110.36:585:13

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.95 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 5.57 kWh/m² in May across the year — January's 2.95 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.8Moderate
62.8Moderate
72.8Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.9Moderate
202.9Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.2Moderate
293.2Moderate
303.2Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Toyohama

In seasonPeak

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

Toyohama 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 January a good time to visit Toyohama?

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

2.2
Sightseeing
12th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Toyohama.

What to pack for Toyohama in January

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

In January, Toyohama sees daytime highs around 10°C and nights near 6°C. Pack a warm layer. Worth having: rain gear and a windbreaker. About 9 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Toyohama in January

The nearest coast averages about 15°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from May 30 to Nov 13 — about 5.5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Toyohama in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Toyohama peaks around July 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highModerateJul 10UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Toyohama in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Toyohama 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 Toyohama?

Toyohama sits at 34.7°N, 136.9°E, 3 m above sea level, in Japan. The nearest listed city is Minamichita, 7.0 km away.

Topography around Toyohama

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

Within 3 km, the terrain around Toyohama has only modest variations in elevation — a maximum elevation change of 113 m around an average of 25 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 128 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,297 m.

The land around Toyohama is covered by water (44%) and trees (38%) within 3 km, water (79%) within 16 km, and trees (40%) and water (36%) within 80 km.

3 km
113 m
16 km
128 m
80 km
1,297 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Minamichita 7.0 km · Ishiki 13 km · Kaminoma 13 km · Taketoyo 16 km · Handa 19 km · Hekinan 20 km · Nishio 20 km · Tokoname 21 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 Toyohama (34.7093°, 136.9342°, elevation 3 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).