Awaji weather in January

In January, Awaji sees average daytime highs of 9°C and overnight lows near 6°C, with 76 mm of precipitation across 12.2 wet days and about 10 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 9°C through the month. The sky is clear or mostly clear about 22% 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 Awaji's 8th-clearest and 1st-windiest month. For the whole year in context, see Awaji's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
76 mm
12.2 wet days
Daylight
9 h 54 min
7:12 AM – 5:07 PM
Cloud cover
60%
8th clearest
Wind
21 km/h
1st windiest
Solar energy
2.72 kWh/m²
Travel score
1.9
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 9°C through the month.

A typical January day in Awaji reaches about 9°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 6°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
1196
1296
1396
1496
1596
1696
1795
1895
1995
2095
2195
2295
2395
2495
2595
2695
2795
2895
2995
3095
3195

How January really feels in Awaji

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.

Awaji 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 daysSnow daysDaylight (hours)Travel score
Jan / 7612.20.5101.9
Feb10° / 7810.70.710.72.0
Mar12° / 11311.9011.73.3
Apr16° / 12°12410.2012.85.1
May20° / 17°14610013.86.2
Jun23° / 20°19612.4014.36.0
Jul26° / 24°17812014.16.2
Aug28° / 26°1029.4013.36.3
Sep26° / 23°19012.1012.26.4
Oct22° / 18°17010.1011.16.7
Nov17° / 13°918.5010.25.5
Dec12° / 8411.60.19.73.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 30% of January, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36040
46040
56040
66040
75941
85842
95842
105743
115644
125446
135446
145347
155248
165149
174951
184951
194852
204753
214753
224753
234753
244654
254654
264654
274753
284852
294852
304852
314852

Chance of precipitation in January

Any precipitationSnow

Awaji gets around 76 mm of rain and snow over 12.2 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 40% and peaks near 43% on the wettest days, and about 1 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1371
2361
3361
4361
5361
6351
7361
8361
9361
10361
11371
12371
13381
14391
15391
16401
17412
18412
19422
20422
21432
22432
23432
24433
25433
26433
27433
28433
29423
30423
31413

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

Across January, daily wind ranges from about 21 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

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 7:12 AM to 7:05 AM, and sunset from 4:55 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:124:55
29.77:124:56
39.77:124:57
49.87:124:57
59.87:124:58
69.87:124:59
79.87:125:00
89.87:125:01
99.87:125:01
109.87:125:02
119.87:125:03
129.97:125:04
139.97:125:05
149.97:125:06
159.97:125:07
169.97:125:07
179.97:115:08
1810.07:115:09
1910.07:115:10
2010.07:115:11
2110.07:105:12
2210.17:105:13
2310.17:105:14
2410.17:095:15
2510.17:095:16
2610.17:085:17
2710.27:085:18
2810.27:075:19
2910.27:075:20
3010.27:065:21
3110.37:055:22

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.72 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.61 kWh/m² in May across the year — January's 2.72 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.9Moderate
272.9Moderate
282.9Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Awaji

In seasonPeak

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

Awaji 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 Awaji?

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

1.9
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 Awaji.

What to pack for Awaji in January

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

In January, Awaji sees daytime highs around 9°C and nights near 6°C. Pack a warm layer. Worth having: rain gear and a windbreaker. About 12 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Awaji 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 at the nearest coast (about 13 km away) is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 5 to Nov 16 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Awaji 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 Awaji 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 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 22UV 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 Awaji 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 Awaji is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1625 µg/m³Oct 1914 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar24Moderate
Apr26Moderate
May24Moderate
Jun21Moderate
Jul22Moderate
Aug24Moderate
Sep17Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Awaji?

Awaji sits at 34.5°N, 134.9°E, 203 m above sea level, in Japan. The nearest listed city is Sumoto, 15 km away.

Topography around Awaji

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

Within 3 km, the terrain around Awaji has significant variations in elevation — a maximum elevation change of 529 m around an average of 169 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 529 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,346 m.

The land around Awaji is covered by trees (66%) and water (21%) within 3 km, water (69%) and trees (23%) within 16 km, and trees (45%) and water (36%) within 80 km.

3 km
529 m
16 km
529 m
80 km
1,346 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Sumoto 15 km · Akashi 21 km · Minamiawaji 27 km · Higashinozoe 27 km · Inami 30 km · Fukura 31 km · Kobe 33 km · Hannan 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 Awaji (34.4777°, 134.9307°, elevation 203 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).