Ishikawa weather in January

In January, Ishikawa sees average daytime highs of 19°C and overnight lows near 17°C, with 103 mm of rain across 12 wet days and about 10.5 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 16% of the time in January, and the air most often feels dry.

Daylight stretches from about 10 h 24 min at the start of January to 10 h 48 min by month's end. Set against the rest of the year, January is Ishikawa's 11th-clearest and 3rd-windiest month. For the whole year in context, see Ishikawa's year-round climate.

Daytime high
19°
11th warmest
Overnight low
17°
2nd coldest
Rainfall
103 mm
12 wet days
Daylight
10 h 30 min
7:23 AM – 5:53 PM
Cloud cover
71%
11th clearest
Wind
27 km/h
3rd windiest
Solar energy
2.45 kWh/m²
Travel score
5.6
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 19°C through the month.

A typical January day in Ishikawa reaches about 19°C in the afternoon and slips back to 17°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 22°C. Set against its neighbours, January runs about 2°C cooler than December and on par with February.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11917
21917
31917
41917
51917
61917
71917
81917
91917
101917
111917
121917
131917
141917
151917
161917
171917
181917
191917
201917
211917
221916
231916
241916
251816
261816
271816
281816
291816
301816
311816

How January really feels in Ishikawa

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.

Ishikawa weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 17°1031210.55.6
Feb19° / 17°9911.711.15.5
Mar20° / 18°13413.211.85.8
Apr22° / 20°15813.212.66.0
May24° / 23°20714.113.36.1
Jun27° / 26°22415.513.65.4
Jul28° / 27°12410.913.55.6
Aug29° / 27°17514.412.95.2
Sep28° / 27°18813.412.25.8
Oct26° / 25°13911.811.46.5
Nov23° / 22°10010.710.76.7
Dec21° / 19°11011.310.46.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23367
33268
43268
53268
63169
73169
83169
93169
103070
112971
122971
133070
143070
152971
162971
172971
182971
192971
202971
212971
223070
233070
243070
252971
262971
272971
283070
293070
302971
312971

Chance of precipitation in January

Any precipitation

Ishikawa gets around 103 mm of rain over 12 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
537
637
737
838
938
1038
1138
1238
1338
1438
1538
1639
1739
1839
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3039
3139

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 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16222133
26123133
36123133
46123133
56123133
66123133
76123133
86123133
96123133
106123133
116123133
126222133
136222133
146222133
156222133
166321133
176321133
186420133
196520123
206520123
216619123
226619123
236719113
246719113
256719113
266819103
276819103
286819103
296819103
306819103
31691993

Wind in January

Winds average 27 km/h in January.

Across January, daily wind ranges from about 27 km/h on the calmest days to 28 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
1327breezy
1428breezy
1528breezy
1628breezy
1728breezy
1828breezy
1928breezy
2028breezy
2128breezy
2228breezy
2328breezy
2428breezy
2528breezy
2627breezy
2727breezy
2827breezy
2927breezy
3027breezy
3127breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 10 h 24 min at the start of January to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over January. Sunrise moves from 7:21 AM to 7:19 AM, and sunset from 5:43 PM to 6:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.47:215:43
210.47:215:44
310.47:215:44
410.47:225:45
510.47:225:46
610.47:225:46
710.47:225:47
810.47:225:48
910.47:225:48
1010.47:235:49
1110.57:235:50
1210.57:235:50
1310.57:235:51
1410.57:235:52
1510.57:235:53
1610.57:235:53
1710.57:235:54
1810.57:235:55
1910.67:225:56
2010.67:225:56
2110.67:225:57
2210.67:225:58
2310.67:225:59
2410.67:225:59
2510.67:216:00
2610.77:216:01
2710.77:216:02
2810.77:216:02
2910.77:206:03
3010.77:206:04
3110.87:196:05

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.45 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 6.42 kWh/m² in July across the year — January's 2.45 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.4Moderate
202.4Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in January

Hazard calendar for Ishikawa

In seasonPeak

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

Ishikawa 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 Ishikawa?

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

5.6
Sightseeing
8th-best month of the year
2.3
Beach & pool
11th-best month of the year

January is a reasonable time to visit Ishikawa for sightseeing.

What to pack for Ishikawa in January

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

In January, Ishikawa sees daytime highs around 19°C and nights near 17°C. Worth packing: rain gear and a windbreaker. About 12 days see rain.

rain geara windbreaker

Sea temperature near Ishikawa in January

The nearest coast averages about 22°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 29°C and coldest in February near 22°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb22Refreshing
Mar22Refreshing
Apr23Refreshing
May25Warm
Jun27Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov25Warm
Dec24Refreshing

UV index in Ishikawa in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ishikawa peaks around July 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 5 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 11UV 12Dec 22UV 5
UV index (midday)Level
Jan5High
Feb7Very high
Mar9Very high
Apr8Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct8Very high
Nov7High
Dec5Moderate

Air quality in Ishikawa 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 Ishikawa is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2017 µg/m³Jul 128 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb14Moderate
Mar17Moderate
Apr16Moderate
May13Moderate
Jun9Good
Jul8Good
Aug10Good
Sep9Good
Oct9Good
Nov10Good
Dec10Good
Location & terrain

Where is Ishikawa?

Ishikawa sits at 26.4°N, 127.8°E, 11 m above sea level, in Japan. The nearest listed city is Uruma, 6.0 km away.

Topography around Ishikawa

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

Within 3 km, the terrain around Ishikawa has only modest variations in elevation — a maximum elevation change of 192 m around an average of 45 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 358 m; within 80 km, significant variations in elevation — a maximum elevation change of 491 m.

The land around Ishikawa is covered by trees (54%) within 3 km, water (63%) and trees (22%) within 16 km, and water (92%) within 80 km.

3 km
192 m
16 km
358 m
80 km
491 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Uruma 6.0 km · Yomitan 8.0 km · Gushikawa 8.0 km · Okinawa 10 km · Katsuren-haebaru 11 km · Kishaba 14 km · Chatan 14 km · Ginowan 19 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 Ishikawa (26.4233°, 127.8214°, elevation 11 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).