Nikaho weather in August

In August, Nikaho sees average daytime highs of 28°C and overnight lows near 22°C, with 204 mm of rain across 16.6 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°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 14 h 06 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Nikaho's 4th-clearest and 12th-windiest month. For the whole year in context, see Nikaho's year-round climate.

Daytime high
28°
1st warmest
Overnight low
22°
12th coldest
Rainfall
204 mm
16.6 wet days
Daylight
13 h 36 min
4:58 AM – 6:31 PM
Cloud cover
67%
4th clearest
Wind
9 km/h
12th windiest
Solar energy
4.81 kWh/m²
Travel score
5.2
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Nikaho reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, August runs about 2°C warmer than July and about 4°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212721
222721
232721
242721
252721
262721
272721
282721
292721
302721
312720

How August really feels in Nikaho

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.

Nikaho weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°15924.822.69.60.0
Feb / -1°11720.81810.50.0
Mar / 12819.71111.70.6
Apr13° / 114151.7133.1
May18° / 11°12313.9014.15.3
Jun22° / 16°13713014.76.0
Jul26° / 20°22417.7014.55.4
Aug28° / 22°20416.6013.55.2
Sep24° / 18°18016012.35.6
Oct18° / 12°17115.90114.9
Nov11° / 17319.82.89.82.2
Dec / 18424.115.29.30.2

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 16% of August, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53763
63862
73862
83862
93862
103961
113961
123961
133961
143862
153862
163862
173862
184060
194060
204060
213961
223862
233862
243862
253763
263763
273763
283664
293664
303565
313565

Chance of precipitation in August

Any precipitation

Nikaho gets around 204 mm of rain over 16.6 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 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
148
248
348
448
548
648
749
849
950
1050
1151
1251
1352
1453
1554
1654
1755
1855
1956
2056
2156
2256
2356
2457
2557
2657
2757
2857
2957
3056
3156

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 82% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
102927584
202926585
302925595
402925595
502925586
6021025576
7021025576
8021025576
9021025576
10021026566
11031127536
12031127536
13031128526
14031229506
15031229506
16031230495
17031330485
18041331475
19141431464
20141432454
21151532444
22151533434
23161633413
24161634403
25161734393
26171835373
27171935363
28171935343
29182036323
30182236313
31182336292

Wind in August

Winds average 9 km/h in August, the calmest month.

Across August, daily wind ranges from about 8 km/h on the calmest days to 9 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
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 06 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 72 minutes over August. Sunrise moves from 4:44 AM to 5:12 AM, and sunset from 6:49 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.14:446:49
214.14:456:48
314.04:466:47
414.04:476:46
514.04:476:45
613.94:486:43
713.94:496:42
813.84:506:41
913.84:516:40
1013.84:526:39
1113.74:536:37
1213.74:546:36
1313.74:556:35
1413.64:566:34
1513.64:576:32
1613.64:586:31
1713.54:596:30
1813.55:006:28
1913.45:016:27
2013.45:026:25
2113.45:036:24
2213.35:036:22
2313.35:046:21
2413.25:056:19
2513.25:066:18
2613.25:076:16
2713.15:086:15
2813.15:096:13
2913.05:106:12
3013.05:116:10
3112.95:126:09

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.81 kWh/m².

For context, solar energy here swings from a low near 1.62 kWh/m² to a high of 5.52 kWh/m² in June across the year — August's 4.81 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
124.9Bright
134.9Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.6Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.4Bright
304.4Bright
314.4Bright
Planning a trip in August

Hazard calendar for Nikaho

In seasonPeak

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

Nikaho 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 Nikaho?

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

5.2
Sightseeing
5th-best month of the year
5.7
Beach & pool
1st-best month of the year

August is a reasonable time to visit Nikaho for sightseeing.

What to pack for Nikaho in August

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

In August, Nikaho sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Nikaho 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 13 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 27 to Oct 24 — about 3.9 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul22Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Nikaho 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 Nikaho peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Nikaho 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 Nikaho is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Nikaho?

Nikaho sits at 39.3°N, 139.9°E, 47 m above sea level, in Japan. The nearest listed city is Yurihonjō, 17 km away.

Topography around Nikaho

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

Within 3 km, the terrain around Nikaho has only modest variations in elevation — a maximum elevation change of 127 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,210 m.

The land around Nikaho is covered by trees (30%), cropland (27%) and water (25%) within 3 km, water (52%) and trees (36%) within 16 km, and trees (50%) and water (38%) within 80 km.

3 km
127 m
16 km
1,122 m
80 km
2,210 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Yurihonjō 17 km · Sakata 40 km · Shonai 47 km · Yuzawa 50 km · Ōmagari 51 km · Daisen 51 km · Akita 52 km · Yokote 53 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 Nikaho (39.2708°, 139.9395°, elevation 47 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).