Tsuha weather in September

In September, Tsuha sees average daytime highs of 28°C and overnight lows near 27°C, with 179 mm of rain across 13.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-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 42% of the time in September, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Tsuha's 2nd-clearest and 7th-windiest month. For the whole year in context, see Tsuha's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
27°
10th coldest
Rainfall
179 mm
13.9 wet days
Daylight
12 h 12 min
6:17 AM – 6:27 PM
Cloud cover
55%
2nd clearest
Wind
24 km/h
7th windiest
Solar energy
5.17 kWh/m²
Travel score
5.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

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

A typical September day in Tsuha reaches about 28°C in the afternoon and slips back to 27°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12827
22827
32827
42827
52827
62827
72827
82827
92827
102827
112827
122827
132827
142827
152827
162827
172827
182826
192826
202826
212826
222726
232726
242726
252726
262726
272726
282726
292726
302726

How September really feels in Tsuha

Once humidity and wind are folded in, September averages 12 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
12
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Tsuha weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 17°10612.210.55.5
Feb19° / 16°10211.911.15.4
Mar20° / 18°13713.511.85.7
Apr22° / 20°15413.312.66.0
May24° / 23°21113.613.36.1
Jun27° / 25°23415.313.65.5
Jul28° / 27°12310.213.55.8
Aug29° / 27°16814.112.95.3
Sep28° / 27°17913.912.25.8
Oct26° / 24°14211.711.46.6
Nov23° / 22°10110.710.76.7
Dec20° / 18°10911.810.46.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55545
65545
75545
85545
95644
105644
115743
125743
135743
145842
155842
165842
175941
185842
195842
205743
215842
225842
235842
245842
255842
265842
275842
285842
295842
305842

Chance of precipitation in September

Any precipitation

Tsuha gets around 179 mm of rain over 13.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
148
248
349
449
549
649
748
848
948
1047
1147
1246
1346
1446
1545
1645
1745
1845
1945
2044
2144
2244
2343
2443
2542
2642
2742
2842
2941
3041

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 95% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10122176
20132274
30132274
40132373
50132373
60142471
70142471
80142570
90152569
100152668
110262666
120272764
130382762
140382861
150392959
1604102957
1704113055
1805123152
1905123251
2006133348
2106143446
2207143543
2307153641
2408153739
2508163838
2609163936
2709174034
2819174132
2919184131
30110184229

Wind in September

Winds average 24 km/h in September.

Across September, daily wind ranges from about 22 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
122breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
923breezy
1023breezy
1123breezy
1223breezy
1323breezy
1424breezy
1524breezy
1624breezy
1724breezy
1824breezy
1924breezy
2024breezy
2125breezy
2225breezy
2325breezy
2425breezy
2525breezy
2625breezy
2725breezy
2825breezy
2925breezy
3025breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 36 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over September. Sunrise moves from 6:11 AM to 6:24 AM, and sunset from 6:44 PM to 6:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:116:44
212.56:116:43
312.56:126:42
412.56:126:41
512.46:136:39
612.46:136:38
712.46:136:37
812.46:146:36
912.36:146:35
1012.36:156:34
1112.36:156:32
1212.36:166:31
1312.26:166:30
1412.26:166:29
1512.26:176:28
1612.26:176:27
1712.16:186:25
1812.16:186:24
1912.16:196:23
2012.06:196:22
2112.06:196:21
2212.06:206:20
2312.06:206:18
2411.96:216:17
2511.96:216:16
2611.96:226:15
2711.96:226:14
2811.86:236:13
2911.86:236:11
3011.86:246:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.17 kWh/m².

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 6.41 kWh/m² in July across the year — September's 5.17 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.2Bright
165.2Bright
175.2Bright
185.1Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
235.0Bright
244.9Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
Planning a trip in September

Hazard calendar for Tsuha

In seasonPeak

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

Tsuha 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 September a good time to visit Tsuha?

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

5.8
Sightseeing
6th-best month of the year
6.3
Beach & pool
3rd-best month of the year

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

What to pack for Tsuha in September

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

In September, Tsuha sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 14 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Tsuha in September

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

The sea offshore is warmest in August at about 29°C and coldest in February near 21°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan22Refreshing
Feb21Refreshing
Mar21Refreshing
Apr22Refreshing
May24Warm
Jun26Warm
Jul29Tropical
Aug29Tropical
Sep28Tropical
Oct27Warm
Nov25Warm
Dec24Refreshing

UV index in Tsuha in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tsuha peaks around July 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 13UV 12Jan 1UV 5
UV index (midday)Level
Jan5Moderate
Feb7Very high
Mar9Very high
Apr8Very high
May10Very high
Jun11Extreme
Jul12Extreme
Aug11Extreme
Sep11Extreme
Oct8Very high
Nov6High
Dec5Moderate

Air quality in Tsuha in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tsuha is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (July, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1916 µg/m³Jul 137 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar16Moderate
Apr15Moderate
May12Moderate
Jun7Good
Jul7Good
Aug9Good
Sep8Good
Oct9Good
Nov9Good
Dec10Good
Location & terrain

Where is Tsuha?

Tsuha sits at 26.7°N, 128.1°E, 9 m above sea level, in Japan. The nearest listed city is Nago, 12 km away.

Topography around Tsuha

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

Within 3 km, the terrain around Tsuha has only modest variations in elevation — a maximum elevation change of 195 m around an average of 48 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 494 m; within 80 km, significant variations in elevation — a maximum elevation change of 491 m.

The land around Tsuha is covered by trees (48%) and water (48%) within 3 km, water (51%) and trees (45%) within 16 km, and water (92%) within 80 km.

3 km
195 m
16 km
494 m
80 km
491 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Nago 12 km · Ishikawa 38 km · Uruma 39 km · Gushikawa 40 km · Katsuren-haebaru 42 km · Yomitan 45 km · Okinawa 46 km · Kishaba 49 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 Tsuha (26.6575°, 128.0941°, elevation 9 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).