Ina weather in July

In July, Ina sees average daytime highs of 25°C and overnight lows near 17°C, with 203 mm of rain across 16.5 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 13% of the time in July, and the air most often feels humid.

Daylight stretches from about 14 h 24 min at the start of July to 13 h 54 min by month's end. Set against the rest of the year, July is Ina's 11th-clearest and 8th-windiest month. For the whole year in context, see Ina's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
17°
11th coldest
Rainfall
203 mm
16.5 wet days
Daylight
14 h 12 min
4:48 AM – 7:00 PM
Cloud cover
76%
11th clearest
Wind
5 km/h
8th windiest
Solar energy
4.86 kWh/m²
Travel score
5.6
out of 10

Ina is city in Nagano prefecture, Japan.

Density
102/km²
people per km²
Founded
1954

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 27°C by the end.

A typical July day in Ina reaches about 25°C in the afternoon and slips back to 17°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, July runs about 4°C warmer than June and about 1°C cooler than August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12316
22316
32416
42416
52416
62417
72417
82417
92417
102517
112517
122517
132517
142517
152517
162517
172518
182618
192618
202618
212618
222618
232618
242618
252618
262618
272718
282718
292718
302718
312718

How July really feels in Ina

Once humidity and wind are folded in, July 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

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Ina weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -8°8310.710.59.80.0
Feb / -7°889.38.310.60.0
Mar / -3°14413.27.811.70.9
Apr13° / 13312.11.912.93.6
May18° / 13711.9013.95.6
Jun22° / 14°18115.2014.45.4
Jul25° / 17°20316.5014.25.6
Aug26° / 18°12114.1013.45.9
Sep23° / 15°16412.5012.26.1
Oct17° / 17611.7011.15.2
Nov11° / 989.71.110.12.7
Dec / -4°8010.47.59.60.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 14% of July, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31882
41981
52080
62080
72179
82377
92377
102377
112476
122476
132575
142674
152674
162674
172872
182872
192971
202971
212971
223169
233169
243268
253466
263466
273565
283664
293664
303664
313763

Chance of precipitation in July

Any precipitation

Ina gets around 203 mm of rain over 16.5 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 53% and peaks near 61% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
161
261
361
461
561
661
760
860
959
1059
1158
1257
1356
1455
1553
1652
1751
1850
1949
2048
2148
2247
2346
2446
2545
2645
2744
2844
2944
3044
3144

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the humid band about 62% of days. Sticky, muggy-or-worse air turns up on roughly 11% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11537462
21336483
31135513
41035514
5834544
6733555
7632575
8531586
9430606
10329617
11328627
12227638
13226648
14225649
15124669
161236610
171226710
181216711
191206712
201196713
211186813
221176715
231176616
241166617
251156618
261146619
271136521
281126522
291116523
301116424
311106425

Wind in July

Winds average 5 km/h in July.

Across July, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 24 min at the start of July to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 4:39 AM to 4:58 AM, and sunset from 7:04 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:397:04
214.44:407:04
314.44:407:03
414.44:417:03
514.44:417:03
614.44:427:03
714.34:427:03
814.34:437:03
914.34:437:03
1014.34:447:02
1114.34:447:02
1214.34:457:02
1314.34:467:01
1414.24:467:01
1514.24:477:00
1614.24:487:00
1714.24:487:00
1814.24:496:59
1914.24:506:59
2014.14:506:58
2114.14:516:57
2214.14:526:57
2314.14:526:56
2414.04:536:56
2514.04:546:55
2614.04:556:54
2714.04:556:53
2813.94:566:53
2913.94:576:52
3013.94:586:51
3113.94:586:50

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.86 kWh/m².

For context, solar energy here swings from a low near 2.57 kWh/m² to a high of 5.6 kWh/m² in May across the year — July's 4.86 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.8Bright
144.8Bright
154.8Bright
164.9Bright
174.9Bright
184.9Bright
195.0Bright
205.0Bright
215.0Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Ina?

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

5.6
Sightseeing
3rd-best month of the year
5.1
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Ina for sightseeing.

What to pack for Ina in July

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

In July, Ina sees daytime highs around 25°C and nights near 17°C. Pack rain gear. Worth having: light clothes and sun protection. About 17 days see rain.

rain gearlight clothessun protection

UV index in Ina in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ina peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 14UV 11Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Ina in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Ina is worst in April — around 18 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1918 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar17Moderate
Apr18Moderate
May17Moderate
Jun16Moderate
Jul13Moderate
Aug12Good
Sep10Good
Oct10Good
Nov9Good
Dec8Good
Location & terrain

Where is Ina?

Ina sits at 35.8°N, 138.0°E, 638 m above sea level, in Japan. The nearest listed city is Minamiminowa, 5.0 km away.

Topography around Ina

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

Within 3 km, the terrain around Ina has significant variations in elevation — a maximum elevation change of 417 m around an average of 678 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,406 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,069 m.

The land around Ina is covered by artificial surfaces (36%), cropland (35%) and trees (20%) within 3 km, trees (76%) within 16 km, and trees (89%) within 80 km.

3 km
417 m
16 km
2,406 m
80 km
3,069 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Minamiminowa 5.0 km · Kinoshita 9.0 km · Komagane 12 km · Tatsuno 18 km · Chino 26 km · Okaya 27 km · Suwa 27 km · Shimosuwa 29 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 Ina (35.8276°, 137.9538°, elevation 638 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).