Oga weather in July

In July, Oga sees average daytime highs of 23°C and overnight lows near 21°C, with 190 mm of rain across 14.4 wet days and about 14.5 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 22% of the time in July, and the air most often feels muggy.

Daylight stretches from about 14 h 48 min at the start of July to 14 h 12 min by month's end. Set against the rest of the year, July is Oga's 9th-clearest and 11th-windiest month. For the whole year in context, see Oga's year-round climate.

Daytime high
23°
2nd warmest
Overnight low
21°
11th coldest
Rainfall
190 mm
14.4 wet days
Daylight
14 h 36 min
4:29 AM – 7:03 PM
Cloud cover
68%
9th clearest
Wind
16 km/h
11th windiest
Solar energy
5.21 kWh/m²
Travel score
6.0
out of 10

Oga is city in Akita Prefecture, Japan.

Density
104/km²
people per km²
Founded
2005

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 22°C in the first days to 25°C by the end.

A typical July day in Oga reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°C cooler than August.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12119
22119
32220
42220
52220
62220
72220
82220
92220
102221
112321
122321
132321
142321
152321
162321
172321
182422
192422
202422
212422
222422
232422
242422
252423
262523
272523
282523
292523
302523
312523

How July really feels in Oga

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.

Oga weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 16925.417.99.50.0
Feb / 11920.514.210.40.0
Mar / 10817.26.711.70.5
Apr10° / 9812.70.3132.1
May14° / 12°11712.6014.24.1
Jun19° / 17°12011014.85.9
Jul23° / 21°19014.4014.56.0
Aug26° / 23°17814.1013.66.2
Sep23° / 21°18014012.36.0
Oct18° / 15°16615.3010.95.0
Nov12° / 17419.61.29.82.5
Dec / 20324.810.29.20.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 13% of July, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23466
33466
43466
53367
63268
73268
83268
93367
103268
113268
123367
133466
143466
153466
163466
173466
183565
193565
203664
213664
223763
233763
243862
253961
264060
274159
284258
294258
304258
314357

Chance of precipitation in July

Any precipitation

Oga gets around 190 mm of rain over 14.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
247
348
448
549
649
749
849
949
1049
1148
1248
1348
1447
1547
1647
1747
1846
1946
2045
2145
2244
2344
2443
2543
2642
2742
2842
2941
3041
3141

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1113404240
2112394350
3111384460
4010374580
509364690
6083547110
7073347130
8063247140
9063147160
10053046180
11052946200
12042846220
13042745240
14032644260
15032444280
16032343301
17022243321
18022042351
19021941371
20021740392
21011640412
22011439423
23011338444
24011236465
25011135476
26011034487
2701932498
2801931509
29018295210
30018285211
31018265312

Wind in July

Winds average 16 km/h in July.

Across July, daily wind ranges from about 16 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 48 min at the start of July to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over July. Sunrise moves from 4:20 AM to 4:42 AM, and sunset from 7:08 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.84:207:08
214.84:217:08
314.84:217:08
414.84:227:07
514.84:227:07
614.74:237:07
714.74:237:07
814.74:247:07
914.74:247:06
1014.74:257:06
1114.74:267:06
1214.64:267:05
1314.64:277:05
1414.64:287:04
1514.64:287:04
1614.64:297:03
1714.54:307:03
1814.54:317:02
1914.54:327:01
2014.54:327:01
2114.44:337:00
2214.44:346:59
2314.44:356:59
2414.44:366:58
2514.34:376:57
2614.34:376:56
2714.34:386:55
2814.34:396:54
2914.24:406:53
3014.24:416:53
3114.24:426:52

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.21 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 5.86 kWh/m² in June across the year — July's 5.21 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.4Bright
295.4Bright
305.4Bright
315.4Bright
Planning a trip in July

Hazard calendar for Oga

In seasonPeak

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

Oga 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 July a good time to visit Oga?

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

6.0
Sightseeing
2nd-best month of the year
4.8
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Oga for sightseeing.

What to pack for Oga in July

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

In July, Oga sees daytime highs around 23°C and nights near 21°C. Pack rain gear. Worth having: light clothes and sun protection. About 14 days see rain.

rain gearlight clothessun protection

Sea temperature near Oga in July

The nearest coast averages about 22°C in July — 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 25°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 30 to Oct 23 — about 3.8 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep24Warm
Oct21Refreshing
Nov17Cool
Dec14Bracing

UV index in Oga in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Oga peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Oga 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 Oga is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (September, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1421 µg/m³Sep 169 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar20Moderate
Apr21Moderate
May18Moderate
Jun13Moderate
Jul11Good
Aug10Good
Sep9Good
Oct10Good
Nov10Good
Dec10Good
Location & terrain

Where is Oga?

Oga sits at 39.9°N, 139.8°E, 6 m above sea level, in Japan. The nearest listed city is Tennō, 11 km away.

Topography around Oga

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

Within 3 km, the terrain around Oga has only modest variations in elevation — a maximum elevation change of 112 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 713 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.

The land around Oga is covered by water (61%) and trees (27%) within 3 km, water (65%) and trees (22%) within 16 km, and trees (46%) and water (45%) within 80 km.

3 km
112 m
16 km
713 m
80 km
1,449 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Tennō 11 km · Katagami 13 km · Akita 29 km · Moritake 32 km · Noshiro 40 km · Yurihonjō 56 km · Takanosu 59 km · Kita-Akita 59 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 Oga (39.871°, 139.8493°, elevation 6 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).