Kashima-shi weather in September

In September, Kashima-shi sees average daytime highs of 24°C and overnight lows near 22°C, with 174 mm of rain across 13.6 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 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 25% 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 Kashima-shi's 9th-clearest and 7th-windiest month. For the whole year in context, see Kashima-shi's year-round climate.

Daytime high
24°
3rd warmest
Overnight low
22°
11th coldest
Rainfall
174 mm
13.6 wet days
Daylight
12 h 12 min
5:25 AM – 5:38 PM
Cloud cover
65%
9th clearest
Wind
18 km/h
7th windiest
Solar energy
4.17 kWh/m²
Travel score
6.1
out of 10

Kashima-shi is city in Ibaraki Prefecture, Japan.

Density
631/km²
people per km²
Founded
1995

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 26°C in the first days to 23°C by the end.

A typical September day in Kashima-shi reaches about 24°C in the afternoon and slips back to 22°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 27°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)
12624
22624
32624
42624
52623
62523
72523
82523
92523
102523
112523
122523
132523
142523
152422
162422
172422
182422
192422
202422
212422
222321
232321
242321
252321
262321
272321
282321
292320
302220

Kashima-shi 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 daysSnow daysDaylight (hours)Travel score
Jan / 899.30.29.82.1
Feb / 849.20.610.62.0
Mar12° / 142130.211.72.9
Apr15° / 12°12612.5012.94.4
May19° / 16°14512.2013.95.6
Jun21° / 19°16413.1014.45.7
Jul25° / 22°14012014.26.4
Aug26° / 24°909.2013.46.7
Sep24° / 22°17413.6012.26.1
Oct20° / 18°23213.9011.15.8
Nov16° / 13°12111.6010.15.0
Dec12° / 8610.209.63.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% 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 59%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14654
24654
34654
44555
54654
64654
74654
84555
94555
104456
114456
124357
134357
144258
154258
164159
174060
183961
193862
203862
213763
223763
233664
243664
253763
263664
273664
283763
293763
303862

Chance of precipitation in September

Any precipitation

Kashima-shi gets around 174 mm of rain over 13.6 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 47% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
139
240
341
442
543
643
744
845
945
1046
1146
1246
1347
1447
1547
1647
1747
1847
1947
2047
2147
2247
2346
2446
2546
2646
2746
2846
2946
3046

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1015245119
2015255118
3016255117
4017265016
5017274915
6018284814
7029284714
80210294613
90311294511
100312304410
11041330439
12151431428
13151531407
14161631397
15171732376
16281832355
17291933334
183102033304
194112133283
204122233262
215132333242
226142433222
237142533201
247152633181
258152733161
269162833140
2710162932120
2811173032110
291217313190
301317313080

Wind in September

Winds average 18 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze

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 5:13 AM to 5:36 AM, and sunset from 6:01 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:136:01
212.85:146:00
312.75:155:58
412.75:165:57
512.65:165:55
612.65:175:54
712.65:185:52
812.55:195:51
912.55:195:49
1012.55:205:48
1112.45:215:46
1212.45:225:45
1312.35:235:43
1412.35:235:42
1512.35:245:40
1612.25:255:38
1712.25:265:37
1812.15:275:35
1912.15:275:34
2012.15:285:32
2112.05:295:31
2212.05:305:29
2312.05:315:28
2411.95:315:26
2511.95:325:25
2611.85:335:23
2711.85:345:22
2811.85:355:20
2911.75:365:19
3011.75:365:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.17 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 5.52 kWh/m² in May across the year — September's 4.17 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.0Bright
194.0Bright
204.0Moderate
213.9Moderate
223.9Moderate
233.8Moderate
243.8Moderate
253.7Moderate
263.7Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Hazard calendar for Kashima-shi

In seasonPeak

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

Kashima-shi 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 Kashima-shi?

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

6.1
Sightseeing
3rd-best month of the year
5.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kashima-shi for sightseeing.

What to pack for Kashima-shi in September

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

In September, Kashima-shi sees daytime highs around 24°C and nights near 22°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Kashima-shi in September

The nearest coast averages about 23°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 18 km away) is warmest in August at about 24°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 23 to Oct 28 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Cool
Jul22Refreshing
Aug24Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Kashima-shi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kashima-shi peaks around August 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateAug 13UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug10Extreme
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kashima-shi 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 Kashima-shi is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1920 µg/m³Dec 178 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar18Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Good
Aug11Good
Sep10Good
Oct10Good
Nov9Good
Dec7Good
Location & terrain

Where is Kashima-shi?

Kashima-shi sits at 36.0°N, 140.6°E, 38 m above sea level, in Japan. The nearest listed city is Kamisu, 8.0 km away.

Topography around Kashima-shi

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

Within 3 km, the terrain around Kashima-shi has only modest variations in elevation — a maximum elevation change of 63 m around an average of 21 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, large variations in elevation — a maximum elevation change of 840 m.

The land around Kashima-shi is covered by artificial surfaces (42%) and trees (26%) within 3 km, water (48%) within 16 km, and water (39%) and trees (26%) within 80 km.

3 km
63 m
16 km
68 m
80 km
840 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Kamisu 8.0 km · Itako 9.0 km · Omigawa 13 km · Namegata 14 km · Katori-shi 15 km · Sawara 16 km · Hokota 24 km · Asahi 28 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 Kashima-shi (35.9654°, 140.6447°, elevation 38 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).