Uenohara weather in August

In August, Uenohara sees average daytime highs of 27°C and overnight lows near 21°C, with 187 mm of rain across 19.1 wet days and about 13.3 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 26°C by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Uenohara's 8th-clearest and 12th-windiest month. For the whole year in context, see Uenohara's year-round climate.

Daytime high
27°
1st warmest
Overnight low
21°
12th coldest
Rainfall
187 mm
19.1 wet days
Daylight
13 h 24 min
5:07 AM – 6:28 PM
Cloud cover
70%
8th clearest
Wind
5 km/h
12th windiest
Solar energy
4.73 kWh/m²
Travel score
5.0
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 26°C by the end.

A typical August day in Uenohara reaches about 27°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°C. Set against its neighbours, August runs about 1°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12821
22821
32821
42821
52821
62821
72821
82821
92821
102821
112821
122821
132821
142821
152821
162821
172821
182721
192721
202720
212720
222720
232720
242720
252720
262720
272720
282720
292620
302620
312620

How August really feels in Uenohara

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Uenohara 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 daysSnow daysDaylight (hours)Travel score
Jan / -3°818.85.89.90.4
Feb / -3°879.96.210.70.7
Mar10° / 15815.15.111.72.0
Apr16° / 15814.30.812.94.2
May20° / 11°16814.9013.95.4
Jun23° / 16°22918.4014.45.0
Jul27° / 20°23019.8014.24.9
Aug27° / 21°18719.1013.35.0
Sep24° / 17°24917.2012.25.4
Oct18° / 11°24615.3011.15.1
Nov13° / 11311.30.110.13.7
Dec / 789.32.39.61.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33565
43565
53565
63565
73565
83565
93565
103367
113367
123367
133367
143367
153367
163367
173367
183268
193367
203367
213367
223367
233367
243268
253268
263268
273367
283367
293268
303268
313268

Chance of precipitation in August

Any precipitation

Uenohara gets around 187 mm of rain over 19.1 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 61% and peaks near 64% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
163
263
363
463
563
663
764
864
963
1063
1163
1263
1363
1462
1562
1662
1762
1861
1961
2060
2160
2259
2359
2459
2559
2659
2759
2859
2959
3059
3159

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 85% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1195634
2195634
3195535
4185635
5185635
6185536
7185536
8185536
9185536
10185635
11195535
12295435
13295534
14295534
15295633
162105632
172105731
183115630
193115729
203125728
213135826
224145725
234155823
244165921
254175920
264186018
274196017
284206016
295215915
305225914
315235913

Wind in August

Winds average 5 km/h in August, the calmest month.

Across August, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 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 60 minutes over August. Sunrise moves from 4:55 AM to 5:19 AM, and sunset from 6:44 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.84:556:44
213.84:566:43
313.84:576:42
413.74:576:41
513.74:586:40
613.74:596:39
713.65:006:38
813.65:016:37
913.65:016:36
1013.65:026:35
1113.55:036:34
1213.55:046:33
1313.55:056:32
1413.45:056:31
1513.45:066:30
1613.45:076:28
1713.35:086:27
1813.35:096:26
1913.35:096:25
2013.25:106:23
2113.25:116:22
2213.25:126:21
2313.15:126:19
2413.15:136:18
2513.05:146:17
2613.05:156:15
2713.05:166:14
2812.95:166:13
2912.95:176:11
3012.95:186:10
3112.85:196:08

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.73 kWh/m².

For context, solar energy here swings from a low near 2.41 kWh/m² to a high of 5.16 kWh/m² in May across the year — August's 4.73 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.9Bright
104.9Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.7Bright
174.7Bright
184.7Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.5Bright
244.5Bright
254.5Bright
264.4Bright
274.4Bright
284.4Bright
294.3Bright
304.3Bright
314.3Bright
Planning a trip in August

Hazard calendar for Uenohara

In seasonPeak

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

Uenohara 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 August a good time to visit Uenohara?

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

5.0
Sightseeing
4th-best month of the year
5.2
Beach & pool
1st-best month of the year

August is a reasonable time to visit Uenohara for sightseeing.

What to pack for Uenohara in August

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

In August, Uenohara sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Uenohara in August

The nearest coast averages about 26°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 55 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 31 to Nov 26 — about 5.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Uenohara 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 Uenohara peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highModerateJul 16UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Uenohara 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 Uenohara is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1623 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb20Moderate
Mar20Moderate
Apr23Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Good
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Uenohara?

Uenohara sits at 35.6°N, 139.1°E, 165 m above sea level, in Japan. The nearest listed city is Sagamihara, 13 km away.

Topography around Uenohara

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

Within 3 km, the terrain around Uenohara has significant variations in elevation — a maximum elevation change of 469 m around an average of 298 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,587 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.

The land around Uenohara is covered by trees (80%) within 3 km, trees (93%) within 16 km, and trees (51%) and artificial surfaces (23%) within 80 km.

3 km
469 m
16 km
1,587 m
80 km
3,737 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Sagamihara 13 km · Ōtsuki 13 km · Itsukaichi 15 km · Akiruno 16 km · Aihara 18 km · Iwai 18 km · Hachiōji 19 km · Tsuru 20 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 Uenohara (35.6167°, 139.1167°, elevation 165 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).