Obita weather in September

In September, Obita sees average daytime highs of 26°C and overnight lows near 23°C, with 202 mm of rain across 11.9 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 25°C by the end. The sky is clear or mostly clear about 42% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Obita's 3rd-clearest and 8th-windiest month. For the whole year in context, see Obita's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
202 mm
11.9 wet days
Daylight
12 h 12 min
6:09 AM – 6:21 PM
Cloud cover
55%
3rd clearest
Wind
14 km/h
8th windiest
Solar energy
4.4 kWh/m²
Travel score
6.4
out of 10

Obita is town in Nishisonogi district, Nagasaki prefecture, Japan.

Density
1,577/km²
people per km²
Founded
1969

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 25°C by the end.

A typical September day in Obita reaches about 26°C in the afternoon and slips back to 23°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72724
82724
92724
102724
112723
122723
132723
142723
152723
162623
172623
182622
192622
202622
212622
222622
232622
242522
252521
262521
272521
282521
292521
302521

How September really feels in Obita

Once humidity and wind are folded in, September 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

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

Obita 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 daysSnow daysDaylight (hours)Travel score
Jan10° / 8010.80.610.12.1
Feb11° / 97100.410.82.5
Mar13° / 14912011.83.7
Apr17° / 13°16711.4012.85.3
May21° / 17°19710.8013.76.2
Jun24° / 21°44416.5014.15.5
Jul27° / 24°34616.6013.95.3
Aug29° / 25°18513.7013.25.2
Sep26° / 23°20211.9012.26.4
Oct22° / 18°1127.5011.27.3
Nov17° / 13°1069.1010.35.7
Dec12° / 9210.309.93.3

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 13% of September, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15149
25050
35149
45149
55149
65248
75248
85248
95446
105446
115446
125545
135545
145545
155644
165644
175644
185545
195644
205644
215644
225644
235644
245644
255644
265644
275644
285644
295644
305644

Chance of precipitation in September

Any precipitation

Obita gets around 202 mm of rain over 11.9 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 39% and peaks near 46% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
146
245
345
444
543
643
742
842
941
1041
1140
1240
1339
1439
1538
1638
1738
1837
1937
2037
2137
2236
2336
2436
2535
2635
2734
2834
2933
3033

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 73% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1004185127
2004205125
3005215123
4016225021
5017235019
6017245018
7018254916
8019264815
90210274813
100211284612
111312284511
121313294410
13141529429
14151629408
15261730388
16271830377
17281930356
18382030335
19392231315
203102331294
214112431274
224122431253
234142531233
245152631222
255162730202
265172730182
276182730172
287202829161
297212828151
308222828131

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over September. Sunrise moves from 5:59 AM to 6:18 AM, and sunset from 6:41 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:596:41
212.76:006:40
312.66:006:39
412.66:016:37
512.66:026:36
612.56:026:35
712.56:036:33
812.56:046:32
912.46:046:31
1012.46:056:29
1112.46:056:28
1212.36:066:26
1312.36:076:25
1412.36:076:24
1512.26:086:22
1612.26:096:21
1712.26:096:19
1812.16:106:18
1912.16:116:17
2012.16:116:15
2112.06:126:14
2212.06:136:12
2312.06:146:11
2411.96:146:10
2511.96:156:08
2611.96:166:07
2711.86:166:05
2811.86:176:04
2911.76:186:03
3011.76:186:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.4 kWh/m².

For context, solar energy here swings from a low near 2.17 kWh/m² to a high of 5.36 kWh/m² in May across the year — September's 4.4 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.7Bright
54.7Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Obita

In seasonPeak

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

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

Obita's rainy season runs June–July, 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 September a good time to visit Obita?

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

6.4
Sightseeing
2nd-best month of the year
6.3
Beach & pool
2nd-best month of the year

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

What to pack for Obita in September

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

In September, Obita sees daytime highs around 26°C and nights near 23°C. Worth packing: light clothes and rain gear. About 12 days see rain.

light clothesrain gear

Sea temperature near Obita in September

The nearest coast averages about 27°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 21 km away) is warmest in August at about 28°C and coldest in February near 16°C.

It's comfortable for a long swim from May 21 to Dec 1 — about 6.4 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May20Cool
Jun22Refreshing
Jul25Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov21Refreshing
Dec19Cool

UV index in Obita in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Obita peaks around July 16 at about 10 (extreme) — 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 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 16UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Obita 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 Obita is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateApr 1324 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May21Moderate
Jun17Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct11Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Obita?

Obita sits at 32.8°N, 129.9°E, 19 m above sea level, in Japan. The nearest listed city is Togitsu, 4.0 km away.

Topography around Obita

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

Within 3 km, the terrain around Obita has significant variations in elevation — a maximum elevation change of 438 m around an average of 118 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 565 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,455 m.

The land around Obita is covered by trees (70%) and artificial surfaces (26%) within 3 km, trees (45%) and water (39%) within 16 km, and water (59%) and trees (30%) within 80 km.

3 km
438 m
16 km
565 m
80 km
1,455 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Togitsu 4.0 km · Nagasaki 7.0 km · Ōmura 13 km · Isahaya 15 km · Saikai 27 km · Unzen 35 km · Ureshinomachi-shimojuku 35 km · Kashima 38 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 Obita (32.8167°, 129.8833°, elevation 19 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).