Ōmura weather in July

In July, Ōmura sees average daytime highs of 28°C and overnight lows near 25°C, with 309 mm of rain across 17 wet days and about 14 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 30°C by the end. The sky is clear or mostly clear about 22% of the time in July, and the air most often feels miserable.

Daylight stretches from about 14 h 06 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Ōmura's 11th-clearest and 8th-windiest month. For the whole year in context, see Ōmura's year-round climate.

Daytime high
28°
2nd warmest
Overnight low
25°
11th coldest
Rainfall
309 mm
17 wet days
Daylight
14 hours
5:27 AM – 7:25 PM
Cloud cover
70%
11th clearest
Wind
11 km/h
8th windiest
Solar energy
4.82 kWh/m²
Travel score
4.9
out of 10

Ōmura is city in Nagasaki Prefecture, Japan.

Density
753/km²
people per km²
Founded
1942

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 26°C in the first days to 30°C by the end.

A typical July day in Ōmura reaches about 28°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°C cooler than August.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12623
22623
32623
42623
52723
62724
72724
82724
92724
102724
112724
122824
132824
142825
152825
162825
172825
182825
192925
202925
212925
222925
232925
242926
252926
262926
272926
283026
293026
303026
313026

How July really feels in Ōmura

Once humidity and wind are folded in, July averages 16 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
16
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Ōmura 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 / 657.90.510.12.1
Feb10° / 838.40.310.82.4
Mar13° / 13111011.73.7
Apr18° / 13°15010.8012.85.5
May22° / 17°17310.6013.76.4
Jun25° / 21°38116014.15.6
Jul28° / 25°309170144.9
Aug30° / 26°17915013.24.7
Sep27° / 23°18811.5012.26.3
Oct22° / 18°1107011.27.3
Nov17° / 13°947.7010.35.8
Dec12° / 767.709.93.3

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 65%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
22080
32080
42179
52179
62476
72476
82575
92674
102773
112971
123070
133169
143367
153367
163565
173664
183763
193862
204060
214159
224258
234456
244555
254654
264753
274852
285050
294951
305149
315050

Chance of precipitation in July

Any precipitation

Ōmura gets around 309 mm of rain over 17 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 55% and peaks near 71% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
171
271
370
469
569
668
767
865
964
1062
1161
1259
1357
1456
1554
1653
1751
1850
1949
2048
2147
2246
2345
2444
2544
2643
2743
2843
2942
3042
3143

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
13265417
22245519
32225521
42205523
51195525
61175428
71165330
81155232
91145035
101135037
111114939
121104841
131104743
14194645
15184547
16174448
17164350
18164251
19154153
20154054
21143956
22143956
23133858
24033760
25033661
26023563
27023563
28023464
29023365
30013366
31013267

Wind in July

Winds average 11 km/h in July.

Across July, daily wind ranges from about 10 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 06 min at the start of July to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over July. Sunrise moves from 5:19 AM to 5:36 AM, and sunset from 7:28 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:197:28
214.15:197:28
314.15:207:28
414.15:207:28
514.15:217:28
614.15:217:28
714.15:227:27
814.15:227:27
914.15:237:27
1014.15:237:27
1114.05:247:27
1214.05:247:26
1314.05:257:26
1414.05:257:26
1514.05:267:25
1614.05:277:25
1714.05:277:25
1813.95:287:24
1913.95:287:24
2013.95:297:23
2113.95:307:23
2213.95:307:22
2313.85:317:22
2413.85:327:21
2513.85:327:20
2613.85:337:20
2713.85:347:19
2813.75:347:18
2913.75:357:18
3013.75:367:17
3113.75:367:16

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.82 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 5.31 kWh/m² in May across the year — July's 4.82 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Bright
44.1Bright
54.1Bright
64.2Bright
74.3Bright
84.3Bright
94.4Bright
104.5Bright
114.5Bright
124.6Bright
134.7Bright
144.8Bright
154.8Bright
164.9Bright
175.0Bright
185.0Bright
195.1Bright
205.1Bright
215.2Bright
225.2Bright
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 Ōmura

In seasonPeak

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

Ōmura sits in the Pacific typhoon belt; the season peaks July–October.

Ōmura's rainy season runs May–September, when most of the year's rain falls.

Pacific typhoon
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is July a good time to visit Ōmura?

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

4.9
Sightseeing
7th-best month of the year
5.6
Beach & pool
3rd-best month of the year

July is a reasonable time to visit Ōmura for sightseeing.

What to pack for Ōmura in July

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

In July, Ōmura sees daytime highs around 28°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Ōmura in July

The nearest coast averages about 25°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 31 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 27 to Nov 29 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Ōmura in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ōmura peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 16UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Ōmura 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 Ōmura is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateApr 1324 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May21Moderate
Jun17Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct11Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Ōmura?

Ōmura sits at 32.9°N, 130.0°E, 17 m above sea level, in Japan. The nearest listed city is Isahaya, 12 km away.

Topography around Ōmura

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

Within 3 km, the terrain around Ōmura has only modest variations in elevation — a maximum elevation change of 229 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,058 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,406 m.

The land around Ōmura is covered by artificial surfaces (48%) and water (24%) within 3 km, trees (52%) and water (32%) within 16 km, and water (55%) and trees (32%) within 80 km.

3 km
229 m
16 km
1,058 m
80 km
1,406 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Isahaya 12 km · Obita 13 km · Togitsu 14 km · Nagasaki 20 km · Ureshinomachi-shimojuku 22 km · Kashima 24 km · Saikai 26 km · Arita 30 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 Ōmura (32.9214°, 129.9539°, elevation 17 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).