Kikugawa weather in September

In September, Kikugawa sees average daytime highs of 27°C and overnight lows near 22°C, with 258 mm of rain across 17.1 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 29°C in the first days to 25°C by the end. The sky is clear or mostly clear about 28% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Kikugawa's 9th-clearest and 11th-windiest month. For the whole year in context, see Kikugawa's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
258 mm
17.1 wet days
Daylight
12 h 12 min
5:35 AM – 5:48 PM
Cloud cover
63%
9th clearest
Wind
11 km/h
11th windiest
Solar energy
4.21 kWh/m²
Travel score
5.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 25°C by the end.

A typical September day in Kikugawa reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62824
72824
82823
92823
102823
112823
122823
132823
142723
152722
162722
172722
182722
192722
202622
212621
222621
232621
242621
252621
262521
272520
282520
292520
302520

How September really feels in Kikugawa

Once humidity and wind are folded in, September averages 2 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
2
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.

Kikugawa 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° / 7760.19.92.6
Feb11° / 977.30.510.72.9
Mar14° / 16011.40.111.74.0
Apr18° / 11°17311.3012.85.7
May22° / 16°19612.5013.86.2
Jun25° / 20°27115.9014.35.5
Jul29° / 24°29016.8014.14.6
Aug30° / 25°17417013.34.2
Sep27° / 22°25817.1012.25.2
Oct22° / 17°22713.5011.16.2
Nov17° / 12°13110.1010.25.7
Dec12° / 767.109.73.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34753
44753
54753
64654
74555
84555
94555
104456
114555
124456
134555
144555
154456
164555
174456
184456
194456
204357
214456
224456
234357
244258
254456
264456
274357
284357
294258
304357

Chance of precipitation in September

Any precipitation

Kikugawa gets around 258 mm of rain over 17.1 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 57% and peaks near 58% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
157
258
358
458
558
658
758
858
958
1058
1158
1258
1358
1457
1557
1656
1756
1856
1956
2056
2156
2256
2355
2455
2555
2655
2755
2855
2955
3055

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 36% of days. Sticky, muggy-or-worse air turns up on roughly 76% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1013215718
2013225717
3014225716
4014235616
5014245615
6015255514
7016265314
8027275113
9028285012
10029294911
110210304711
120311314510
13031232439
14031334418
15041535397
16041636376
17051837346
18162037325
19162138304
20172339273
21182439253
22192639232
231102739212
242112839191
252122939171
263133138151
273143238131
284153236121
294153436100
30516353590

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:24 AM to 5:46 AM, and sunset from 6:10 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:246:10
212.75:256:09
312.75:266:07
412.75:276:06
512.65:276:04
612.65:286:03
712.55:296:02
812.55:306:00
912.55:305:59
1012.45:315:57
1112.45:325:56
1212.45:325:54
1312.35:335:53
1412.35:345:51
1512.35:355:50
1612.25:355:48
1712.25:365:47
1812.15:375:45
1912.15:385:44
2012.15:385:42
2112.05:395:41
2212.05:405:39
2312.05:415:38
2411.95:415:36
2511.95:425:35
2611.85:435:33
2711.85:445:32
2811.85:445:31
2911.75:455:29
3011.75:465:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.21 kWh/m².

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 5.48 kWh/m² in May across the year — September's 4.21 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.0Bright
214.0Moderate
224.0Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Kikugawa

In seasonPeak

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

Kikugawa 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 Kikugawa?

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

5.2
Sightseeing
6th-best month of the year
5.5
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kikugawa for sightseeing.

What to pack for Kikugawa in September

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

In September, Kikugawa sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 17 days see rain.

light clothesrain gear

Sea temperature near Kikugawa in September

The nearest coast averages about 26°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 27°C and coldest in February near 16°C.

It's comfortable for a long swim from May 25 to Nov 29 — about 6.2 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Kikugawa 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 Kikugawa peaks around July 20 at about 10 (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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 20UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul10Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kikugawa 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 Kikugawa is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× 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
Jan11Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May19Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep10Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Kikugawa?

Kikugawa sits at 34.7°N, 138.1°E, 19 m above sea level, in Japan. The nearest listed city is Maruobara, 5.0 km away.

Topography around Kikugawa

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

Within 3 km, the terrain around Kikugawa has only modest variations in elevation — a maximum elevation change of 149 m around an average of 66 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 537 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,995 m.

The land around Kikugawa is covered by trees (72%) within 3 km, trees (40%) and water (34%) within 16 km, and water (46%) and trees (45%) within 80 km.

3 km
149 m
16 km
537 m
80 km
2,995 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Maruobara 5.0 km · Sagara 8.0 km · Kakegawa 12 km · Sumiyoshi 13 km · Kanaya 13 km · Shimada 14 km · Ōyama 14 km · Omaezaki 15 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 Kikugawa (34.7029°, 138.1198°, 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).