Iida weather in February

In February, Iida sees average daytime highs of 3°C and overnight lows near -6°C, with 107 mm of precipitation across 10.2 wet days and about 10.7 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 2°C in the first days to 5°C by the end. The sky is clear or mostly clear about 37% of the time in February, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of February to 11 h 06 min by month's end. Set against the rest of the year, February is Iida's 4th-clearest and 3rd-windiest month. For the whole year in context, see Iida's year-round climate.

Daytime high
11th warmest
Overnight low
-6°
2nd coldest
Precipitation
107 mm
10.2 wet days
Daylight
10 h 42 min
6:43 AM – 5:23 PM
Cloud cover
54%
4th clearest
Wind
6 km/h
3rd windiest
Solar energy
3.77 kWh/m²
Travel score
0.0
out of 10

Iida is city in Nagano Prefecture, Japan.

Density
154/km²
people per km²
Founded
1937

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 2°C in the first days to 5°C by the end.

A typical February day in Iida reaches about 3°C in the afternoon and slips back to -6°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 8°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)
12-8
22-8
32-8
42-8
52-8
62-8
72-7
83-7
93-7
103-7
113-7
123-7
133-7
143-7
153-6
163-6
174-6
184-6
194-6
204-6
214-6
224-5
234-5
245-5
255-5
265-5
275-4
285-4

How February really feels in Iida

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
12 feel bitter (≤ -10°C)

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

Iida weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -7°9911.7119.90.0
Feb / -6°10710.28.110.70.0
Mar / -2°17113.1711.71.1
Apr14° / 17412.91.412.93.6
May19° / 19113.7013.85.4
Jun22° / 14°26318014.45.0
Jul25° / 18°30820.3014.25.0
Aug27° / 19°18418.6013.35.3
Sep23° / 15°22815.5012.25.7
Oct18° / 21012.9011.15.3
Nov11° / 12610.41.210.12.9
Dec / -3°100127.99.60.3

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in February.

Beyond those clear spells, partly cloudy skies cover about 18% of February, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
15842
25842
35842
45743
55743
65743
75743
85743
95545
105545
115545
125545
135545
145446
155446
165446
175446
185446
195347
205347
215347
225248
235347
245248
255248
265347
275248
285248

Chance of precipitation in February

Any precipitationSnow

Iida gets around 107 mm of rain and snow over 10.2 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 37% and peaks near 39% on the wettest days, and about 8 days bring snow.

0%10%20%30%40%50%151015202528
Rain chance (%)Snow chance (%)
13734
23734
33734
43734
53733
63733
73733
83733
93732
103732
113731
123731
133630
143630
153629
163628
173628
183627
193627
203626
213626
223625
233725
243725
253725
263825
273825
283925

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 6 km/h in February.

Across February, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202528
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm

Sunrise & sunset in February

DaylightNight

Daylight runs from about 10 h 12 min at the start of February to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over February. Sunrise moves from 6:55 AM to 6:28 AM, and sunset from 5:09 PM to 5:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
110.26:555:09
210.36:555:10
310.36:545:11
410.36:535:12
510.36:525:13
610.46:525:14
710.46:515:15
810.46:505:16
910.56:495:17
1010.56:485:18
1110.56:475:19
1210.66:465:20
1310.66:455:21
1410.66:445:22
1510.76:435:23
1610.76:425:24
1710.76:415:25
1810.86:405:26
1910.86:395:27
2010.86:385:28
2110.96:375:29
2210.96:365:30
2310.96:355:31
2411.06:335:32
2511.06:325:33
2611.06:315:34
2711.16:305:35
2811.16:285:36

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 3.77 kWh/m².

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 5.47 kWh/m² in May across the year — February's 3.77 kWh/m² falls in the middle.

012345151015202528
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.5Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.6Moderate
93.6Moderate
103.6Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.9Moderate
193.9Moderate
203.9Moderate
214.0Moderate
224.0Moderate
234.0Bright
244.0Bright
254.0Bright
264.1Bright
274.1Bright
284.1Bright
Planning a trip in February

Is February a good time to visit Iida?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

February is a weaker month for outdoor sightseeing in Iida.

What to pack for Iida in February

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

In February, Iida sees daytime highs around 3°C and nights near -6°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

UV index in Iida in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February 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 Iida peaks around July 13 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 highExtremeVery highModerateJul 13UV 11Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Iida 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 Iida is worst in April — around 18 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1818 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar16Moderate
Apr18Moderate
May17Moderate
Jun15Moderate
Jul11Good
Aug11Good
Sep10Good
Oct9Good
Nov8Good
Dec8Good
Location & terrain

Where is Iida?

Iida sits at 35.5°N, 137.8°E, 517 m above sea level, in Japan. The nearest listed city is Komagane, 24 km away.

Topography around Iida

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

Within 3 km, the terrain around Iida has large variations in elevation — a maximum elevation change of 733 m around an average of 565 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,037 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,167 m.

The land around Iida is covered by artificial surfaces (53%) and trees (36%) within 3 km, trees (86%) within 16 km, and trees (90%) within 80 km.

3 km
733 m
16 km
2,037 m
80 km
3,167 m
treesgrasslandcroplandartificial surfaceswater
February weather nearby: Komagane 24 km · Nakatsugawa 29 km · Ina 36 km · Ena 40 km · Minamiminowa 42 km · Kinoshita 45 km · Tatsuno 54 km · Mizunami 54 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 Iida (35.5196°, 137.8207°, elevation 517 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).