Ueda weather in August

In August, Ueda sees average daytime highs of 28°C and overnight lows near 19°C, with 134 mm of rain across 16.2 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 27°C by the end. The sky is clear or mostly clear about 22% of the time in August, and the air most often feels humid.

Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Ueda's 9th-clearest and 11th-windiest month. For the whole year in context, see Ueda's year-round climate.

Daytime high
28°
1st warmest
Overnight low
19°
12th coldest
Rainfall
134 mm
16.2 wet days
Daylight
13 h 24 min
5:09 AM – 6:33 PM
Cloud cover
65%
9th clearest
Wind
4 km/h
11th windiest
Solar energy
4.99 kWh/m²
Travel score
5.1
out of 10

Ueda is city in Nagano Prefecture, Japan.

Density
285/km²
people per km²
Founded
2006

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 27°C by the end.

A typical August day in Ueda reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 32°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)
12920
22920
32920
42920
52920
62920
72920
82920
92920
102920
112920
122920
132819
142819
152819
162819
172819
182819
192819
202819
212819
222819
232719
242719
252719
262718
272718
282718
292718
302718
312718

How August really feels in Ueda

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.

Ueda 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 / -5°9016.518.29.80.0
Feb / -5°8413.613.810.60.0
Mar / -2°11815.311.611.71.1
Apr14° / 10713.5312.93.9
May20° / 12313.90.113.95.7
Jun23° / 14°16817.2014.45.4
Jul27° / 18°20920.3014.24.9
Aug28° / 19°13416.2013.45.1
Sep24° / 15°16115.3012.25.7
Oct18° / 15014.20.111.15.1
Nov12° / 8712.93.810.12.8
Dec / -3°8816.114.59.60.4

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 19% of August, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34258
44357
54357
64357
74357
84258
94258
104258
114258
124159
134159
144159
154159
164159
173961
184060
194060
204060
214060
224060
234060
244060
254060
264159
274159
284060
294060
304159
314258

Chance of precipitation in August

Any precipitation

Ueda gets around 134 mm of rain over 16.2 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 53% and peaks near 55% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
150
250
350
450
550
650
750
850
951
1051
1152
1252
1352
1453
1553
1653
1753
1854
1954
2054
2154
2254
2354
2454
2554
2654
2754
2855
2955
3055
3155

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the humid band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 38% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
10746460
20746460
30746460
40746470
50845460
60845460
70845460
80845460
91845461
101845451
111945451
121945441
131945441
1411045431
1521045421
1621046421
1721146401
1821246391
1931247381
2031347361
2131448351
2231548331
2331649321
2441649301
2541750281
2641851261
2741951251
2842052231
2952151221
3052252201
3152352191

Wind in August

Winds average 4 km/h in August.

Across August, daily wind ranges from about 4 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
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 54 min at the start of August to 12 h 54 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 4:57 AM to 5:21 AM, and sunset from 6:49 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.94:576:49
213.84:586:48
313.84:586:47
413.84:596:46
513.85:006:45
613.75:016:44
713.75:026:43
813.75:026:42
913.65:036:41
1013.65:046:40
1113.65:056:39
1213.55:066:38
1313.55:076:37
1413.55:076:35
1513.45:086:34
1613.45:096:33
1713.45:106:32
1813.35:116:30
1913.35:126:29
2013.35:126:28
2113.25:136:26
2213.25:146:25
2313.15:156:24
2413.15:166:22
2513.15:166:21
2613.05:176:20
2713.05:186:18
2813.05:196:17
2912.95:206:15
3012.95:216:14
3112.95:216:12

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.99 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.72 kWh/m² in May across the year — August's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
165.0Bright
174.9Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.6Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in August

Is August a good time to visit Ueda?

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

5.1
Sightseeing
4th-best month of the year
5.8
Beach & pool
1st-best month of the year

August is a reasonable time to visit Ueda for sightseeing.

What to pack for Ueda in August

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

In August, Ueda sees daytime highs around 28°C and nights near 19°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Ueda in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Ueda peaks around July 18 at about 10 (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 highModerateJul 18UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May9Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ueda 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 Ueda is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Ueda?

Ueda sits at 36.4°N, 138.3°E, 536 m above sea level, in Japan. The nearest listed city is Tōmi, 9.0 km away.

Topography around Ueda

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

Within 3 km, the terrain around Ueda has significant variations in elevation — a maximum elevation change of 594 m around an average of 559 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,841 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,130 m.

The land around Ueda is covered by artificial surfaces (46%) and trees (27%) within 3 km, trees (71%) within 16 km, and trees (84%) within 80 km.

3 km
594 m
16 km
1,841 m
80 km
3,130 m
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Tōmi 9.0 km · Kamimaruko 9.0 km · Sakaki 11 km · Komoro 17 km · Miyota 22 km · Chikuma 22 km · Saku 27 km · Suzaka 28 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 Ueda (36.4027°, 138.2816°, elevation 536 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. 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).