Tsushima weather in July

In July, Tsushima sees average daytime highs of 25°C and overnight lows near 24°C, with 215 mm of rain across 11.8 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 23°C in the first days to 27°C by the end. The sky is clear or mostly clear about 27% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 18 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Tsushima's 11th-clearest and 10th-windiest month. For the whole year in context, see Tsushima's year-round climate.

Daytime high
25°
2nd warmest
Overnight low
24°
11th coldest
Rainfall
215 mm
11.8 wet days
Daylight
14 h 06 min
5:26 AM – 7:31 PM
Cloud cover
66%
11th clearest
Wind
23 km/h
10th windiest
Solar energy
5.35 kWh/m²
Travel score
6.4
out of 10

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 23°C in the first days to 27°C by the end.

A typical July day in Tsushima reaches about 25°C in the afternoon and slips back to 24°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°C cooler than August.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12322
22322
32322
42422
52422
62423
72423
82423
92423
102423
112423
122523
132523
142524
152524
162524
172524
182524
192524
202624
212625
222625
232625
242625
252625
262625
272625
282725
292726
302726
312726

Tsushima 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 / 658.60.8101.9
Feb10° / 658.40.410.72.2
Mar12° / 10°1139.80.111.73.3
Apr15° / 13°1249.3012.84.7
May18° / 17°1298.3013.86.1
Jun21° / 20°20210.8014.26.2
Jul25° / 24°21511.8014.16.4
Aug27° / 26°18911.7013.36.3
Sep25° / 23°17110.6012.26.8
Oct21° / 19°916.9011.17.1
Nov16° / 14°828.3010.25.5
Dec12° / 638.50.39.83.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 10% of July, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32377
42476
52476
62575
72575
82674
92674
102773
112971
123070
133268
143268
153565
163664
173862
183961
194258
204357
214456
224753
234852
245050
255149
265248
275248
285446
295545
305545
315545

Chance of precipitation in July

Any precipitation

Tsushima gets around 215 mm of rain over 11.8 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 38% and peaks near 51% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
151
251
350
450
550
649
748
847
946
1044
1143
1241
1340
1439
1538
1636
1735
1834
1933
2032
2131
2230
2329
2429
2528
2628
2728
2828
2928
3028
3128

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11742483
21640503
31638514
40536545
50534547
60432568
704305610
804285612
904265614
1004245616
1104235518
1204215520
1303195523
1403185326
1503165229
1603155032
1703144934
1802134737
1902124540
2002124443
2102114246
2202104048
2301103851
240193654
250193456
260183259
270183061
280072964
290072766
300072667
310062569

Wind in July

Winds average 23 km/h in July.

Across July, daily wind ranges from about 22 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1423breezy
1523breezy
1623breezy
1723breezy
1823breezy
1922breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy
3122breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 18 min at the start of July to 13 h 48 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 5:18 AM to 5:36 AM, and sunset from 7:34 PM to 7:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.35:187:34
214.35:197:34
314.25:197:34
414.25:207:34
514.25:207:34
614.25:217:34
714.25:217:33
814.25:227:33
914.25:227:33
1014.25:237:33
1114.25:237:32
1214.15:247:32
1314.15:247:32
1414.15:257:32
1514.15:267:31
1614.15:267:31
1714.15:277:30
1814.05:277:30
1914.05:287:29
2014.05:297:29
2114.05:297:28
2214.05:307:28
2313.95:317:27
2413.95:317:27
2513.95:327:26
2613.95:337:25
2713.85:347:25
2813.85:347:24
2913.85:357:23
3013.85:367:22
3113.85:367:21

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.35 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 5.87 kWh/m² in May across the year — July's 5.35 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.4Bright
175.4Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.7Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in July

Hazard calendar for Tsushima

In seasonPeak

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

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

Tsushima's rainy season runs March–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 Tsushima?

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

6.4
Sightseeing
3rd-best month of the year
5.8
Beach & pool
3rd-best month of the year

July is a reasonable time to visit Tsushima for sightseeing.

What to pack for Tsushima in July

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

In July, Tsushima sees daytime highs around 25°C and nights near 24°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 12 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Tsushima 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 offshore is warmest in August at about 27°C and coldest in March near 15°C.

It's comfortable for a long swim from Jun 6 to Nov 28 — about 5.8 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Tsushima in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tsushima peaks around August 24 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateAug 24UV 9Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Tsushima 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 Tsushima is worst in April — around 37 µg/m³ PM2.5 (poor), about 2.2× the cleanest month (September, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateApr 1637 µg/m³Sep 2117 µg/m³
PM2.5 (µg/m³)Level
Jan23Moderate
Feb27Moderate
Mar35Poor
Apr37Poor
May35Poor
Jun27Moderate
Jul20Moderate
Aug19Moderate
Sep17Moderate
Oct17Moderate
Nov21Moderate
Dec19Moderate
Location & terrain

Where is Tsushima?

Tsushima sits at 34.2°N, 129.3°E, 6 m above sea level, in Japan. The nearest listed city is Iki, 62 km away.

Topography around Tsushima

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

Within 3 km, the terrain around Tsushima has significant variations in elevation — a maximum elevation change of 554 m around an average of 116 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 640 m; within 80 km, large variations in elevation — a maximum elevation change of 628 m.

The land around Tsushima is covered by trees (60%) and water (33%) within 3 km, water (67%) and trees (31%) within 16 km, and water (95%) within 80 km.

3 km
554 m
16 km
640 m
80 km
628 m
treesgrasslandartificial surfaceswater
July weather nearby: Iki 62 km · Geoje 86 km · Hirado 96 km · Kyosai 96 km · Sinhyeon 97 km · Busan 102 km · Matsuura 103 km · Karatsu 106 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 Tsushima (34.2063°, 129.2908°, 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).