Kasama weather in January

In January, Kasama sees average daytime highs of 8°C and overnight lows near 0°C, with 56 mm of precipitation across 6.7 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 57% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Kasama's 2nd-clearest and 4th-windiest month. For the whole year in context, see Kasama's year-round climate.

Daytime high
12th warmest
Overnight low
1st coldest
Precipitation
56 mm
6.7 wet days
Daylight
9 h 48 min
6:55 AM – 4:41 PM
Cloud cover
41%
2nd clearest
Wind
8 km/h
4th windiest
Solar energy
2.82 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 8°C through the month.

A typical January day in Kasama reaches about 8°C in the afternoon and slips back to 0°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 11°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)
191
291
391
481
581
681
780
880
980
1080
1180
1280
1380
1480
1580
1680
1780
1880
1980
2080
2180
2280
2380
2480
2580
2680
2780
2880
2980
3080
3180

How January really feels in Kasama

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.

Kasama 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 / 566.71.69.81.6
Feb / 587.32.110.61.9
Mar12° / 10712.11.411.73.2
Apr17° / 11712.10.212.95.2
May22° / 13°14212.6013.96.1
Jun25° / 18°15215.3014.45.6
Jul28° / 22°18417.3014.24.7
Aug30° / 23°13715013.44.5
Sep26° / 19°17514.8012.25.7
Oct21° / 14°17912.4011.16.0
Nov15° / 888.5010.15.0
Dec10° / 577.30.39.62.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
27921
37822
47822
57822
67822
77723
87723
97624
107525
117426
127426
137327
147228
157129
167129
177129
187030
196931
206931
216931
227030
237030
247030
257030
267129
277129
287129
297228
307228
317228

Chance of precipitation in January

Any precipitationSnow

Kasama gets around 56 mm of rain and snow over 6.7 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 22% and peaks near 25% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1182
2182
3182
4183
5183
6193
7193
8193
9203
10204
11214
12224
13235
14235
15245
16246
17256
18256
19256
20257
21257
22257
23257
24257
25257
26247
27247
28237
29237
30227
31227

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 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 6:55 AM to 6:48 AM, and sunset from 4:29 PM to 4:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.66:554:29
29.66:564:30
39.66:564:30
49.66:564:31
59.66:564:32
69.66:564:33
79.66:564:33
89.66:564:34
99.76:564:35
109.76:564:36
119.76:564:37
129.76:564:38
139.76:564:39
149.76:554:40
159.86:554:40
169.86:554:41
179.86:554:42
189.86:544:43
199.86:544:44
209.96:544:45
219.96:534:46
229.96:534:47
239.96:534:48
2410.06:524:49
2510.06:524:50
2610.06:514:51
2710.06:514:52
2810.16:504:53
2910.16:494:54
3010.16:494:55
3110.16:484:57

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.82 kWh/m².

For context, solar energy here swings from a low near 2.37 kWh/m² to a high of 5.23 kWh/m² in May across the year — January's 2.82 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.9Moderate
232.9Moderate
242.9Moderate
252.9Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.1Moderate
313.1Moderate
Planning a trip in January

Hazard calendar for Kasama

In seasonPeak

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

Kasama 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 Kasama?

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 Kasama.

What to pack for Kasama in January

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

In January, Kasama sees daytime highs around 8°C and nights near 0°C. Pack a warm layer. Worth having: a heavy coat. About 7 days see rain.

a warm layera heavy coat

Sea temperature near Kasama 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 32 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 24 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun19Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Kasama in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kasama peaks around July 24 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 24UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kasama 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 Kasama is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1821 µg/m³Dec 189 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Kasama?

Kasama sits at 36.4°N, 140.3°E, 177 m above sea level, in Japan. The nearest listed city is Tomobe, 5.0 km away.

Topography around Kasama

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

Within 3 km, the terrain around Kasama has only modest variations in elevation — a maximum elevation change of 167 m around an average of 71 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 698 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,298 m.

The land around Kasama is covered by trees (58%) within 3 km, trees (66%) within 16 km, and trees (43%) and cropland (21%) within 80 km.

3 km
167 m
16 km
698 m
80 km
2,298 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Tomobe 5.0 km · Ishitsuka 15 km · Iwase 15 km · Mito 17 km · Okunoya 17 km · Omitama 18 km · Mashiko 18 km · Makabe 20 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 Kasama (36.3833°, 140.2667°, elevation 177 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).