Utazu weather in January

In January, Utazu sees average daytime highs of 9°C and overnight lows near 5°C, with 59 mm of precipitation across 9.9 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 26% 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 Utazu's 6th-clearest and 1st-windiest month. For the whole year in context, see Utazu's year-round climate.

Daytime high
12th warmest
Overnight low
1st coldest
Precipitation
59 mm
9.9 wet days
Daylight
9 h 54 min
7:16 AM – 5:12 PM
Cloud cover
58%
6th clearest
Wind
14 km/h
1st windiest
Solar energy
2.61 kWh/m²
Travel score
1.9
out of 10

Utazu is town in Ayauta district, Kagawa prefecture, Japan.

Density
2,309/km²
people per km²
Founded
1898

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 9°C through the month.

A typical January day in Utazu reaches about 9°C in the afternoon and slips back to 5°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 about 1°C cooler than February.

10°15°151015202531
Avg high (°C)Avg low (°C)
1105
2105
3105
4105
5105
6105
795
895
995
1095
1195
1295
1395
1495
1595
1695
1795
1895
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094
3194

How January really feels in Utazu

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.

Utazu 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 / 599.91.6101.9
Feb10° / 649.51.510.72.2
Mar13° / 10211.50.311.73.5
Apr18° / 12°11010.6012.85.6
May22° / 16°13010.3013.86.5
Jun25° / 20°19113014.26.0
Jul29° / 24°17712.5014.15.2
Aug30° / 25°1069.7013.35.0
Sep27° / 22°16811.6012.26.1
Oct22° / 17°1349.5011.16.9
Nov17° / 11°688.1010.25.5
Dec12° / 6710.119.83.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 28% of January, with mostly cloudy or overcast conditions the remaining 46%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36337
46337
56238
66238
76040
85941
95842
105644
115644
125545
135347
145248
155248
165149
175149
184951
194951
204951
214951
224951
234951
244951
254951
264951
274951
285050
295149
305149
315149

Chance of precipitation in January

Any precipitationSnow

Utazu gets around 59 mm of rain and snow over 9.9 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 33% and peaks near 37% on the wettest days, and about 2 days bring snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1294
2285
3285
4285
5285
6285
7285
8295
9295
10305
11315
12315
13325
14335
15346
16346
17356
18366
19366
20366
21376
22376
23376
24366
25366
26366
27367
28367
29357
30357
31347

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

Across January, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3113light 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 7:16 AM to 7:10 AM, and sunset from 5:00 PM to 5:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:165:00
29.87:165:01
39.87:165:02
49.87:165:02
59.87:165:03
69.87:165:04
79.87:165:05
89.87:165:05
99.87:165:06
109.87:165:07
119.97:165:08
129.97:165:09
139.97:165:10
149.97:165:11
159.97:165:11
169.97:165:12
1710.07:165:13
1810.07:155:14
1910.07:155:15
2010.07:155:16
2110.07:145:17
2210.17:145:18
2310.17:145:19
2410.17:135:20
2510.17:135:21
2610.27:125:22
2710.27:125:23
2810.27:115:24
2910.27:115:25
3010.37:105:26
3110.37:105:27

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.61 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.54 kWh/m² in May across the year — January's 2.61 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.9Moderate
312.9Moderate
Planning a trip in January

Hazard calendar for Utazu

In seasonPeak

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

Utazu 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 Utazu?

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 Utazu.

What to pack for Utazu in January

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

In January, Utazu sees daytime highs around 9°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Utazu in January

The nearest coast averages about 14°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 19 km away) is warmest in August at about 28°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 3 to Nov 12 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug28Warm
Sep27Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Utazu 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 Utazu peaks around June 22 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 highModerateJun 22UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Utazu 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 Utazu is worst in April — around 24 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1324 µg/m³Dec 1414 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May22Moderate
Jun20Moderate
Jul17Moderate
Aug17Moderate
Sep16Moderate
Oct14Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

Where is Utazu?

Utazu sits at 34.3°N, 133.8°E, 33 m above sea level, in Japan. The nearest listed city is Sakaidechō, 3.0 km away.

Topography around Utazu

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

Within 3 km, the terrain around Utazu has only modest variations in elevation — a maximum elevation change of 224 m around an average of 12 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 618 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,946 m.

The land around Utazu is covered by artificial surfaces (52%) and water (22%) within 3 km, water (41%) and trees (29%) within 16 km, and trees (59%) and water (29%) within 80 km.

3 km
224 m
16 km
618 m
80 km
1,946 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Sakaidechō 3.0 km · Marugame 4.0 km · Tadotsu 7.0 km · Zentsujichó 9.0 km · Takinomiya 11 km · Shioiri 16 km · Mitoyo 16 km · Takamatsu 22 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 Utazu (34.3°, 133.8167°, elevation 33 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).