Hōfu weather in August

In August, Hōfu sees average daytime highs of 30°C and overnight lows near 25°C, with 135 mm of rain across 11.8 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 6th-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 33% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Hōfu's 5th-clearest and 10th-windiest month. For the whole year in context, see Hōfu's year-round climate.

Daytime high
30°
1st warmest
Overnight low
25°
12th coldest
Rainfall
135 mm
11.8 wet days
Daylight
13 h 18 min
5:39 AM – 6:56 PM
Cloud cover
60%
5th clearest
Wind
11 km/h
10th windiest
Solar energy
5.13 kWh/m²
Travel score
5.0
out of 10

Hōfu is city in Yamaguchi Prefecture, Japan.

Density
617/km²
people per km²
Founded
1936

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

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 Hōfu reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, August runs about 2°C warmer than July and about 3°C warmer than September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
183025
193025
203025
212925
222925
232925
242925
252925
262925
272924
282924
292924
302924
312924

How August really feels in Hōfu

Once humidity and wind are folded in, August averages 28 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
28
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.

Hōfu weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6610.41.2101.8
Feb10° / 759.91.110.72.1
Mar13° / 12310.90.111.73.5
Apr17° / 11°14110.2012.85.4
May21° / 15°16210.1013.76.5
Jun24° / 20°26014.2014.25.9
Jul28° / 24°25214.10145.2
Aug30° / 25°13511.8013.35.0
Sep27° / 22°15610.8012.26.4
Oct22° / 17°1027.4011.17.2
Nov17° / 12°788.2010.25.6
Dec11° / 6810.50.39.82.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 15% of August, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45248
55248
65050
75050
84951
94951
104951
114852
124753
134753
144753
154654
164753
174753
184852
194852
204852
214753
224753
234753
244852
254753
264753
274753
284753
294753
304654
314654

Chance of precipitation in August

Any precipitation

Hōfu gets around 135 mm of rain over 11.8 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 38% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
534
634
734
835
936
1037
1137
1238
1339
1440
1540
1641
1741
1842
1942
2042
2142
2241
2341
2441
2540
2640
2740
2839
2939
3039
3138

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 51% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1045244
2045244
3045145
4045046
5044947
6044947
7044947
8044848
9044848
10044847
11044947
12044946
13145045
14155044
15155143
16165142
17165241
18175240
19185338
20295336
212105335
222115433
233125431
243135529
254155427
264165426
275175424
285195422
296205420
307225219
317235317

Wind in August

Winds average 11 km/h in August.

Across August, daily wind ranges from about 11 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
111calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 42 min at the start of August to 12 h 48 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 5:28 AM to 5:50 AM, and sunset from 7:11 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.75:287:11
213.75:297:10
313.75:307:10
413.65:317:09
513.65:317:08
613.65:327:07
713.65:337:06
813.55:347:05
913.55:347:04
1013.55:357:03
1113.45:367:02
1213.45:367:01
1313.45:377:00
1413.35:386:58
1513.35:396:57
1613.35:396:56
1713.25:406:55
1813.25:416:54
1913.25:426:53
2013.25:426:51
2113.15:436:50
2213.15:446:49
2313.15:456:48
2413.05:456:46
2513.05:466:45
2613.05:476:44
2712.95:476:43
2812.95:486:41
2912.85:496:40
3012.85:506:39
3112.85:506:37

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.13 kWh/m².

For context, solar energy here swings from a low near 2.21 kWh/m² to a high of 5.51 kWh/m² in May across the year — August's 5.13 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.1Bright
175.1Bright
185.1Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in August

Hazard calendar for Hōfu

In seasonPeak

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

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

Hōfu'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 August a good time to visit Hōfu?

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

5.0
Sightseeing
8th-best month of the year
6.6
Beach & pool
1st-best month of the year

August is a reasonable time to visit Hōfu for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hōfu in August

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

In August, Hōfu sees daytime highs around 30°C and nights near 25°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Hōfu in August

The nearest coast averages about 27°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 20 km away) is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 8 to Nov 13 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec16Cool

UV index in Hōfu 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 Hōfu peaks around June 21 at about 10 (very high) — 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hōfu 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 Hōfu is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2026 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar27Moderate
Apr24Moderate
May21Moderate
Jun18Moderate
Jul16Moderate
Aug19Moderate
Sep13Moderate
Oct12Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Hōfu?

Hōfu sits at 34.0°N, 131.6°E, 4 m above sea level, in Japan. The nearest listed city is Ogōri-shimogō, 16 km away.

Topography around Hōfu

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

Within 3 km, the terrain around Hōfu has only modest variations in elevation — a maximum elevation change of 225 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 649 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,369 m.

The land around Hōfu is covered by artificial surfaces (64%) within 3 km, trees (43%) and water (39%) within 16 km, and water (48%) and trees (45%) within 80 km.

3 km
225 m
16 km
649 m
80 km
1,369 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Ogōri-shimogō 16 km · Yamaguchi 17 km · Tokuyama 23 km · Shūnan 24 km · Kudamatsu 28 km · Ube 31 km · Mine 36 km · Onoda 36 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 Hōfu (34.05°, 131.5667°, elevation 4 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).