Toyohashi weather in January

In January, Toyohashi sees average daytime highs of 10°C and overnight lows near 3°C, with 65 mm of precipitation across 5.8 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 12th-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 60% 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 Toyohashi's 2nd-clearest and 1st-windiest month. For the whole year in context, see Toyohashi's year-round climate.

Daytime high
10°
12th warmest
Overnight low
1st coldest
Precipitation
65 mm
5.8 wet days
Daylight
9 h 54 min
7:03 AM – 4:57 PM
Cloud cover
41%
2nd clearest
Wind
17 km/h
1st windiest
Solar energy
3 kWh/m²
Travel score
2.6
out of 10

Toyohashi is city in Aichi prefecture, Japan.

Density
1,441/km²
people per km²
Founded
1906

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Toyohashi reaches about 10°C in the afternoon and slips back to 3°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 13°C. Set against its neighbours, January runs about 2°C cooler than December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1113
2113
3103
4103
5103
6103
7103
8103
9103
10103
11103
12103
13103
14103
15103
16103
17103
18103
19103
20103
21103
22103
23103
24102
25102
26102
27102
28102
29102
30102
31102

How January really feels in Toyohashi

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

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

Toyohashi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 655.89.92.6
Feb11° / 816.810.73.0
Mar14° / 13510.511.74.3
Apr19° / 11°15110.412.86.0
May23° / 15°17011.313.86.5
Jun26° / 20°24215.614.35.4
Jul30° / 24°25015.814.14.2
Aug31° / 25°14415.313.33.8
Sep28° / 22°23614.612.25.2
Oct23° / 16°21111.811.16.6
Nov18° / 10°1138.910.25.9
Dec12° / 676.39.73.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37921
47921
57921
67822
77822
87723
97525
107426
117426
127327
137228
147129
157030
167030
176931
186931
196733
206733
216733
226733
236733
246733
256832
266832
276832
286931
296931
306931
317030

Chance of precipitation in January

Any precipitation

Toyohashi gets around 65 mm of rain and snow over 5.8 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 22% on the wettest days, and about 0 day brings snow.

0%10%20%30%151015202531
Rain chance (%)
116
216
315
415
515
616
716
817
917
1018
1119
1220
1320
1421
1521
1622
1722
1822
1922
2022
2122
2222
2321
2421
2520
2620
2720
2819
2919
3019
3119

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 17 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1516light breeze
1616light breeze
1716light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

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 7:02 AM to 6:56 AM, and sunset from 4:45 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:024:45
29.77:034:45
39.77:034:46
49.77:034:47
59.77:034:48
69.87:034:48
79.87:034:49
89.87:034:50
99.87:034:51
109.87:034:52
119.87:034:53
129.87:034:53
139.97:034:54
149.97:034:55
159.97:034:56
169.97:034:57
179.97:024:58
189.97:024:59
1910.07:025:00
2010.07:025:01
2110.07:015:02
2210.07:015:03
2310.17:005:04
2410.17:005:04
2510.17:005:05
2610.16:595:06
2710.16:595:07
2810.26:585:08
2910.26:575:09
3010.26:575:10
3110.36:565:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.4 kWh/m² in May across the year — January's 3 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.9Moderate
22.9Moderate
32.9Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.2Moderate
273.2Moderate
283.2Moderate
293.3Moderate
303.3Moderate
313.3Moderate
Planning a trip in January

Hazard calendar for Toyohashi

In seasonPeak

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

Toyohashi 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 Toyohashi?

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

2.6
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 Toyohashi.

What to pack for Toyohashi in January

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

In January, Toyohashi sees daytime highs around 10°C and nights near 3°C. Pack a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Toyohashi in January

The nearest coast averages about 16°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 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 Toyohashi 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 Toyohashi 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 Toyohashi 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 Toyohashi 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 Toyohashi?

Toyohashi sits at 34.8°N, 137.4°E, 12 m above sea level, in Japan. The nearest listed city is Kozakai-chō, 4.0 km away.

Topography around Toyohashi

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

Within 3 km, the terrain around Toyohashi has only modest variations in elevation — a maximum elevation change of 29 m around an average of 8 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 796 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,181 m.

The land around Toyohashi is covered by artificial surfaces (76%) within 3 km, trees (35%), artificial surfaces (25%) and water (24%) within 16 km, and trees (42%) and water (38%) within 80 km.

3 km
29 m
16 km
796 m
80 km
2,181 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Kozakai-chō 4.0 km · Toyokawa 6.0 km · Kosai 15 km · Tahara 15 km · Gamagōri 16 km · Shinshiro 18 km · Arai 19 km · Kōta 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 Toyohashi (34.7667°, 137.3833°, elevation 12 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).