Hiragi weather in January

In January, Hiragi sees average daytime highs of 9°C and overnight lows near 4°C, with 64 mm of precipitation across 10.2 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 25% 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 Hiragi's 6th-clearest and 1st-windiest month. For the whole year in context, see Hiragi's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
64 mm
10.2 wet days
Daylight
9 h 54 min
7:14 AM – 5:11 PM
Cloud cover
59%
6th clearest
Wind
16 km/h
1st windiest
Solar energy
2.74 kWh/m²
Travel score
1.6
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 Hiragi reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 12°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
195
295
394
494
594
694
794
894
994
1094
1194
1294
1394
1494
1594
1684
1784
1884
1984
2084
2184
2283
2383
2483
2583
2683
2783
2883
2983
3083
3183

How January really feels in Hiragi

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 14 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
14
wind chill below the day's low

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

Hiragi 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 / 6410.21.3101.6
Feb / 6910.21.510.71.9
Mar13° / 10511.70.211.73.3
Apr17° / 11°11610.7012.85.4
May21° / 15°13810.5013.86.4
Jun24° / 20°20713.9014.25.9
Jul28° / 24°19814.3014.15.2
Aug30° / 25°12811.4013.35.0
Sep26° / 22°19912.8012.26.1
Oct21° / 16°16410.1011.16.7
Nov16° / 11°778.4010.25.3
Dec11° / 699.80.39.82.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 26% of January, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26139
36139
46040
56040
65941
75842
85743
95545
105446
115347
125248
135149
145050
154951
164753
174753
184753
194654
204555
214555
224555
234555
244555
254555
264555
274753
284753
294753
304951
314951

Chance of precipitation in January

Any precipitationSnow

Hiragi gets around 64 mm of rain and snow over 10.2 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 34% and peaks near 37% 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 (%)
1293
2293
3293
4293
5293
6303
7303
8303
9313
10323
11323
12333
13344
14344
15354
16364
17365
18365
19375
20375
21375
22376
23376
24376
25376
26376
27376
28366
29366
30366
31366

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

Across January, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light 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 7:14 AM to 7:08 AM, and sunset from 4:59 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:144:59
29.87:145:00
39.87:155:00
49.87:155:01
59.87:155:02
69.87:155:03
79.87:155:04
89.87:155:04
99.87:155:05
109.87:155:06
119.97:155:07
129.97:155:08
139.97:155:08
149.97:155:09
159.97:155:10
169.97:145:11
1710.07:145:12
1810.07:145:13
1910.07:145:14
2010.07:135:15
2110.07:135:16
2210.17:135:17
2310.17:125:18
2410.17:125:19
2510.17:115:20
2610.27:115:20
2710.27:115:21
2810.27:105:22
2910.27:095:23
3010.37:095:24
3110.37:085:25

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.74 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 5.57 kWh/m² in May across the year — January's 2.74 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
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.9Moderate
262.9Moderate
272.9Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Hiragi

In seasonPeak

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

Hiragi 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 Hiragi?

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

1.6
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 Hiragi.

What to pack for Hiragi in January

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

In January, Hiragi sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Hiragi 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 25 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 7 to Nov 13 — about 5.3 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
Oct24Refreshing
Nov20Cool
Dec17Cool

UV index in Hiragi 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 Hiragi 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 Hiragi 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 Hiragi is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1422 µg/m³Oct 1613 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Hiragi?

Hiragi sits at 34.3°N, 134.1°E, 29 m above sea level, in Japan. The nearest listed city is Shido, 7.0 km away.

Topography around Hiragi

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

Within 3 km, the terrain around Hiragi has only modest variations in elevation — a maximum elevation change of 172 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 924 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,946 m.

The land around Hiragi is covered by artificial surfaces (39%) and cropland (33%) within 3 km, trees (51%) within 16 km, and trees (51%) and water (37%) within 80 km.

3 km
172 m
16 km
924 m
80 km
1,946 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Shido 7.0 km · Takamatsu 10 km · Takinomiya 19 km · Higashikagawa 20 km · Wakimachi 23 km · Mima 24 km · Awa 24 km · Naoshima 24 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 Hiragi (34.2706°, 134.1307°, elevation 29 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).