Semboku weather in February

In February, Semboku sees average daytime highs of 0°C and overnight lows near -7°C, with 98 mm of precipitation across 16.1 wet days and about 10.4 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about -1°C in the first days to 1°C by the end. The sky is clear or mostly clear about 5% of the time in February, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of February to 11 hours by month's end. Set against the rest of the year, February is Semboku's 9th-clearest and 2nd-windiest month. For the whole year in context, see Semboku's year-round climate.

Daytime high
11th warmest
Overnight low
-7°
2nd coldest
Precipitation
98 mm
16.1 wet days
Daylight
10 h 24 min
6:38 AM – 5:05 PM
Cloud cover
75%
9th clearest
Wind
9 km/h
2nd windiest
Solar energy
3.01 kWh/m²
Travel score
0.0
out of 10

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about -1°C in the first days to 1°C by the end.

A typical February day in Semboku reaches about 0°C in the afternoon and slips back to -7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between -4°C and 4°C. Set against its neighbours, February runs about 1°C warmer than January and about 4°C cooler than March.

-15°-10°-5°10°151015202528
Avg high (°C)Avg low (°C)
1-1-8
2-1-8
3-1-8
4-1-8
5-1-8
6-1-8
7-1-8
8-1-7
9-1-7
10-1-7
110-7
120-7
130-7
140-7
150-7
160-7
170-7
180-7
190-7
201-7
211-7
221-7
231-7
241-6
251-6
261-6
271-6
282-6

How February really feels in Semboku

Once humidity and wind are folded in, February averages 0 days that feel above 32°C and 28 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
28
28 feel bitter (≤ -10°C)

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

Semboku weather by month

How February compares with the rest of the year at a glance. February is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -8°10718.322.19.50.0
Feb / -7°9816.118.310.40.0
Mar / -4°13418.316.211.70.1
Apr10° / 13315.95132.1
May17° / 150150.114.24.6
Jun21° / 13°15815.1014.85.3
Jul24° / 18°25019.6014.55.2
Aug25° / 19°21617.9013.65.4
Sep21° / 14°18715.8012.35.4
Oct15° / 159150.310.94.1
Nov / 13717.66.49.81.2
Dec / -5°13019.419.29.20.0

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 17% of February, with mostly cloudy or overcast conditions the remaining 78%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
12080
22080
31981
41981
51882
61882
71783
81783
91783
101882
111882
121882
131981
141981
152080
162278
172278
182377
192476
202575
212575
222773
232773
242872
252872
262872
272872
282872

Chance of precipitation in February

Any precipitationSnow

Semboku gets around 98 mm of rain and snow over 16.1 wet days in February, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 59% and peaks near 60% on the wettest days, and about 18 days bring snow.

0%20%40%60%80%151015202528
Rain chance (%)Snow chance (%)
15871
25971
35971
45971
55971
65971
75971
85970
95970
105970
115969
126069
136069
146068
156068
166067
176066
185965
195964
205963
215863
225862
235861
245861
255860
265860
275859
285859

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, February 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%151015202528
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

Wind in February

Winds average 9 km/h in February.

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

051015151015202528
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm

Sunrise & sunset in February

DaylightNight

Daylight runs from about 9 h 54 min at the start of February to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over February. Sunrise moves from 6:53 AM to 6:21 AM, and sunset from 4:49 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
19.96:534:49
210.06:524:50
310.06:514:51
410.06:504:52
510.16:494:53
610.16:484:54
710.16:474:56
810.26:464:57
910.26:454:58
1010.36:444:59
1110.36:435:00
1210.36:425:01
1310.46:415:03
1410.46:395:04
1510.46:385:05
1610.56:375:06
1710.56:365:07
1810.66:355:08
1910.66:335:10
2010.66:325:11
2110.76:315:12
2210.76:295:13
2310.86:285:14
2410.86:275:15
2510.96:255:16
2610.96:245:17
2710.96:235:19
2811.06:215:20

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.01 kWh/m².

For context, solar energy here swings from a low near 1.73 kWh/m² to a high of 5.22 kWh/m² in May across the year — February's 3.01 kWh/m² falls in the middle.

01234151015202528
Solar energy (kWh/m²)Level
12.5Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.9Moderate
122.9Moderate
132.9Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.1Moderate
183.1Moderate
193.2Moderate
203.2Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.4Moderate
253.4Moderate
263.5Moderate
273.5Moderate
283.5Moderate
Planning a trip in February

Is February a good time to visit Semboku?

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

0.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
8th-best month of the year

February is a weaker month for outdoor sightseeing in Semboku.

What to pack for Semboku in February

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

In February, Semboku sees daytime highs around 0°C and nights near -7°C. Pack a warm layer, a heavy coat and rain gear. About 16 days see rain.

a warm layera heavy coatrain gear

UV index in Semboku in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Semboku peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighVery highHighModerateLowAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Semboku in February

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.

Air quality in Semboku is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1420 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug11Good
Sep11Good
Oct12Good
Nov11Good
Dec9Good
Location & terrain

Where is Semboku?

Semboku sits at 39.7°N, 140.7°E, 389 m above sea level, in Japan. The nearest listed city is Shizukuishi, 20 km away.

Topography around Semboku

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

Within 3 km, the terrain around Semboku has large variations in elevation — a maximum elevation change of 836 m around an average of 444 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,556 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,976 m.

The land around Semboku is covered by trees (88%) within 3 km, trees (91%) within 16 km, and trees (80%) within 80 km.

3 km
836 m
16 km
1,556 m
80 km
1,976 m
treesgrasslandcroplandartificial surfaceswater
February weather nearby: Shizukuishi 20 km · Morioka 35 km · Takizawa 35 km · Yahaba 36 km · Ōmagari 37 km · Rokugō 37 km · Daisen 37 km · Hachimantai 39 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 Semboku (39.7093°, 140.7465°, elevation 389 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. 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).