Muroto-misakicho weather in September

In September, Muroto-misakicho sees average daytime highs of 26°C and overnight lows near 25°C, with 280 mm of rain across 15.7 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 25°C by the end. The sky is clear or mostly clear about 36% 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 Muroto-misakicho's 9th-clearest and 7th-windiest month. For the whole year in context, see Muroto-misakicho's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
25°
10th coldest
Rainfall
280 mm
15.7 wet days
Daylight
12 h 12 min
5:52 AM – 6:04 PM
Cloud cover
58%
9th clearest
Wind
21 km/h
7th windiest
Solar energy
4.54 kWh/m²
Travel score
5.8
out of 10

Muroto-misakicho is city in Kōchi Prefecture, Japan.

Density
71/km²
people per km²
Founded
1959

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 27°C in the first days to 25°C by the end.

A typical September day in Muroto-misakicho reaches about 26°C in the afternoon and slips back to 25°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 28°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12826
22726
32726
42726
52726
62726
72725
82725
92725
102725
112725
122725
132725
142725
152625
162625
172624
182624
192624
202624
212624
222624
232624
242524
252524
262523
272523
282523
292523
302523

How September really feels in Muroto-misakicho

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.

Muroto-misakicho weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 948103.6
Feb13° / 1048.610.83.6
Mar15° / 12°16711.911.74.5
Apr18° / 16°18911.512.85.7
May21° / 19°20712.313.76.1
Jun24° / 22°33216.114.25.6
Jul27° / 25°26115145.7
Aug28° / 26°20315.513.25.7
Sep26° / 25°28015.712.25.8
Oct23° / 21°25012.511.26.6
Nov19° / 16°1519.710.36.3
Dec15° / 12°997.59.84.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15248
25149
35149
45050
55050
65050
74951
84951
94951
104951
114852
124951
134951
144852
154951
164951
174852
184951
194852
204951
214951
224951
234951
245050
255050
265149
275149
285149
295149
305149

Chance of precipitation in September

Any precipitation

Muroto-misakicho gets around 280 mm of rain over 15.7 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 52% and peaks near 56% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
156
256
356
456
556
656
756
855
955
1054
1154
1253
1353
1452
1552
1651
1751
1851
1950
2050
2150
2250
2349
2449
2549
2649
2749
2849
2949
3049

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 34% of days. Sticky, muggy-or-worse air turns up on roughly 78% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1003154241
2003164239
3003174337
4003184335
5004194433
6014214431
7015224429
8016234427
9016244325
10017254224
11028264222
12029274121
130311273919
140412283818
150414293717
160515293515
170617293414
181618303213
191720303112
201821302911
21192330289
22192430278
231102630267
241112730256
252112830245
262122930234
272132930224
282133030223
293143030212
303153130202

Wind in September

Winds average 21 km/h in September.

Across September, daily wind ranges from about 18 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
118light breeze
218light breeze
318light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1120light breeze
1220light breeze
1320light breeze
1420breezy
1520breezy
1621breezy
1721breezy
1821breezy
1921breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2823breezy
2923breezy
3023breezy

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 5:41 AM to 6:01 AM, and sunset from 6:25 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:416:25
212.75:426:23
312.75:436:22
412.65:436:21
512.65:446:19
612.65:456:18
712.55:456:16
812.55:466:15
912.45:476:14
1012.45:476:12
1112.45:486:11
1212.35:496:09
1312.35:506:08
1412.35:506:07
1512.25:516:05
1612.25:526:04
1712.25:526:02
1812.15:536:01
1912.15:545:59
2012.15:545:58
2112.05:555:57
2212.05:565:55
2312.05:565:54
2411.95:575:52
2511.95:585:51
2611.85:595:49
2711.85:595:48
2811.86:005:47
2911.76:015:45
3011.76:015:44

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.54 kWh/m².

For context, solar energy here swings from a low near 2.65 kWh/m² to a high of 5.68 kWh/m² in August across the year — September's 4.54 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.1Bright
35.1Bright
45.0Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.6Bright
154.6Bright
164.5Bright
174.5Bright
184.5Bright
194.4Bright
204.4Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
Planning a trip in September

Hazard calendar for Muroto-misakicho

In seasonPeak

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

Muroto-misakicho 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 Muroto-misakicho?

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

5.8
Sightseeing
4th-best month of the year
5.6
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Muroto-misakicho for sightseeing.

What to pack for Muroto-misakicho in September

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

In September, Muroto-misakicho sees daytime highs around 26°C and nights near 25°C. Pack rain gear. Worth having: light clothes, sun protection and a windbreaker. About 16 days see rain.

rain gearlight clothessun protectiona windbreaker

Sea temperature near Muroto-misakicho 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 offshore is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from May 1 to Dec 20 — about 7.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb18Cool
Mar18Cool
Apr19Cool
May21Refreshing
Jun24Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec20Refreshing

UV index in Muroto-misakicho in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Muroto-misakicho peaks around July 10 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highExtremeVery highModerateJul 10UV 11Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Muroto-misakicho 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 Muroto-misakicho is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1419 µg/m³Dec 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb15Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun14Moderate
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Muroto-misakicho?

Muroto-misakicho sits at 33.3°N, 134.2°E, 99 m above sea level, in Japan. The nearest listed city is Aki, 34 km away.

Topography around Muroto-misakicho

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

Within 3 km, the terrain around Muroto-misakicho has significant variations in elevation — a maximum elevation change of 374 m around an average of 64 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 771 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,939 m.

The land around Muroto-misakicho is covered by trees (54%) and water (36%) within 3 km, water (77%) and trees (22%) within 16 km, and water (55%) and trees (43%) within 80 km.

3 km
374 m
16 km
771 m
80 km
1,939 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Aki 34 km · Yamashita 53 km · Tosayamadachō-nakano 57 km · Nankoku 58 km · Kochi 66 km · Tosa 71 km · Ino 74 km · Susaki 82 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 Muroto-misakicho (33.2866°, 134.1683°, elevation 99 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).