Soo weather in August

In August, Soo sees average daytime highs of 30°C and overnight lows near 24°C, with 199 mm of rain across 19.8 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 22% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 36 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Soo's 9th-clearest and 5th-windiest month. For the whole year in context, see Soo's year-round climate.

Daytime high
30°
1st warmest
Overnight low
24°
12th coldest
Rainfall
199 mm
19.8 wet days
Daylight
13 h 12 min
5:45 AM – 6:55 PM
Cloud cover
66%
9th clearest
Wind
8 km/h
5th windiest
Solar energy
4.95 kWh/m²
Travel score
3.7
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical August day in Soo reaches about 30°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, August runs about 1°C warmer than July and about 3°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173024
183024
193024
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How August really feels in Soo

Once humidity and wind are folded in, August averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Soo weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 817.710.22.9
Feb12° / 1008.510.83.4
Mar16° / 15912.811.84.6
Apr20° / 10°1821212.85.9
May24° / 15°20712.313.66.3
Jun26° / 19°46020.7144.7
Jul30° / 23°28020.213.93.8
Aug30° / 24°19919.813.23.7
Sep28° / 21°23316.412.25.1
Oct24° / 15°13710.311.26.9
Nov18° / 1088.610.46.1
Dec13° / 816.6104.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14060
24060
33961
43961
53961
63961
73961
83961
93862
103862
113862
123862
133862
143862
153862
163862
173961
184060
194060
204060
214258
224258
234159
244159
254159
264159
274060
284060
294060
303961
313961

Chance of precipitation in August

Any precipitation

Soo gets around 199 mm of rain over 19.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 64% and peaks near 66% on the wettest days.

0%20%40%60%80%151015202531
Rain chance (%)
164
264
364
464
565
665
765
864
964
1064
1164
1264
1363
1463
1563
1662
1762
1862
1962
2062
2162
2263
2363
2463
2564
2664
2765
2865
2965
3066
3165

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1037522
2037522
3037423
4037423
5037423
6037423
7037324
8037324
9037324
10037324
11037324
12037423
13047323
14047323
15047422
16057421
17157321
18167320
19177319
20177418
21187417
22197317
232107216
242107315
252117314
262127214
273137113
283157012
293166912
303176911
314186810

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 36 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 54 minutes over August. Sunrise moves from 5:35 AM to 5:55 AM, and sunset from 7:09 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.65:357:09
213.55:367:08
313.55:377:07
413.55:377:07
513.55:387:06
613.45:397:05
713.45:397:04
813.45:407:03
913.45:417:02
1013.35:417:01
1113.35:427:00
1213.35:436:59
1313.35:436:58
1413.25:446:57
1513.25:446:56
1613.25:456:55
1713.15:466:54
1813.15:466:53
1913.15:476:52
2013.05:486:51
2113.05:486:50
2213.05:496:48
2313.05:506:47
2412.95:506:46
2512.95:516:45
2612.95:526:44
2712.85:526:42
2812.85:536:41
2912.85:536:40
3012.75:546:39
3112.75:556:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.95 kWh/m².

For context, solar energy here swings from a low near 2.68 kWh/m² to a high of 5.06 kWh/m² in May across the year — August's 4.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.9Bright
214.9Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.7Bright
294.6Bright
304.6Bright
314.5Bright
Planning a trip in August

Hazard calendar for Soo

In seasonPeak

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

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

Soo's rainy season runs May–July, 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 August a good time to visit Soo?

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

3.7
Sightseeing
10th-best month of the year
5.2
Beach & pool
3rd-best month of the year

August is a weaker month for outdoor sightseeing in Soo.

What to pack for Soo in August

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

In August, Soo sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

Sea temperature near Soo in August

The nearest coast averages about 28°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 km away) is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Apr 14 to Jan 4 — about 8.7 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar19Cool
Apr20Refreshing
May22Refreshing
Jun24Refreshing
Jul27Warm
Aug28Tropical
Sep27Warm
Oct26Warm
Nov23Refreshing
Dec21Refreshing

UV index in Soo in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Soo peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 23UV 11Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Soo in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Soo is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodGoodModerateApr 1421 µg/m³Sep 1911 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb18Moderate
Mar21Moderate
Apr22Moderate
May20Moderate
Jun16Moderate
Jul11Good
Aug12Moderate
Sep11Good
Oct12Good
Nov13Moderate
Dec12Moderate
Location & terrain

Where is Soo?

Soo sits at 31.6°N, 131.0°E, 217 m above sea level, in Japan. The nearest listed city is Sueyoshichō-ninokata, 2.0 km away.

Topography around Soo

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

Within 3 km, the terrain around Soo has only modest variations in elevation — a maximum elevation change of 165 m around an average of 205 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 913 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,640 m.

The land around Soo is covered by trees (63%) and cropland (25%) within 3 km, trees (74%) within 16 km, and trees (53%) and water (38%) within 80 km.

3 km
165 m
16 km
913 m
80 km
1,640 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Sueyoshichō-ninokata 2.0 km · Miyakonojō 12 km · Mochibaru 18 km · Shibushi 22 km · Kokubu-matsuki 23 km · Kirishima 24 km · Hamanoichi 26 km · Kushima 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 Soo (31.6464°, 130.9907°, elevation 217 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).