Kitakami weather in September

In September, Kitakami sees average daytime highs of 23°C and overnight lows near 15°C, with 154 mm of rain across 13.6 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 20°C by the end. The sky is clear or mostly clear about 14% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Kitakami's 9th-clearest and 10th-windiest month. For the whole year in context, see Kitakami's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
15°
10th coldest
Rainfall
154 mm
13.6 wet days
Daylight
12 h 18 min
5:22 AM – 5:37 PM
Cloud cover
73%
9th clearest
Wind
7 km/h
10th windiest
Solar energy
3.46 kWh/m²
Travel score
5.8
out of 10

Kitakami is city in Iwate Prefecture, Japan.

Density
213/km²
people per km²
Founded
1954

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 25°C in the first days to 20°C by the end.

A typical September day in Kitakami reaches about 23°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12518
22518
32518
42518
52518
62418
72417
82417
92417
102417
112417
122316
132316
142316
152316
162315
172215
182215
192214
202214
212214
222114
232113
242113
252113
262113
272012
282012
292012
302012

How September really feels in Kitakami

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.

Kitakami 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
Jan / -6°7313.715.99.60.0
Feb / -6°6312.512.610.50.0
Mar / -2°9814.41011.70.6
Apr13° / 104142.2133.3
May18° / 11413.1014.15.4
Jun22° / 14°13012.7014.75.8
Jul25° / 18°18216.4014.55.5
Aug26° / 20°16215.2013.55.6
Sep23° / 15°15413.6012.35.8
Oct17° / 12812.20115.0
Nov10° / 8713.32.69.82.2
Dec / -3°8615.312.19.30.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 70%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12674
22674
32674
42773
52773
62773
72773
82872
92971
102872
112971
123070
133070
143070
153070
163169
173169
183169
193169
203169
213169
223268
233268
243268
253268
263367
273367
283367
293367
303466

Chance of precipitation in September

Any precipitation

Kitakami gets around 154 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 46% and peaks near 51% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
149
249
349
450
550
650
750
850
950
1051
1151
1250
1350
1449
1549
1648
1747
1846
1945
2044
2144
2243
2342
2442
2541
2641
2741
2840
2940
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 26% of days. Sticky, muggy-or-worse air turns up on roughly 25% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12163034181
22163133171
32173233161
42183232150
53193332140
64193331130
74203330120
85213329110
96223328100
10823332790
11924332690
121124322480
131325322370
141526312160
151727302060
162028291850
172229281740
182529271540
192830261330
203130251230
213430231120
22363022920
23393021820
24423119720
25443118610
26463117510
27493116410
28523014310
29543013300
30562912300

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:08 AM to 5:36 AM, and sunset from 6:02 PM to 5:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:086:02
212.95:096:01
312.85:105:59
412.85:115:57
512.75:125:56
612.75:135:54
712.65:145:53
812.65:155:51
912.65:165:49
1012.55:175:48
1112.55:185:46
1212.45:195:44
1312.45:195:43
1412.35:205:41
1512.35:215:39
1612.35:225:37
1712.25:235:36
1812.25:245:34
1912.15:255:32
2012.15:265:31
2112.05:275:29
2212.05:285:27
2311.95:295:26
2411.95:305:24
2511.95:315:22
2611.85:325:21
2711.85:335:19
2811.75:345:17
2911.75:355:16
3011.65:365:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.46 kWh/m².

For context, solar energy here swings from a low near 1.87 kWh/m² to a high of 5.14 kWh/m² in May across the year — September's 3.46 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.7Moderate
23.7Moderate
33.7Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.3Moderate
273.3Moderate
283.3Moderate
293.3Moderate
303.2Moderate
Planning a trip in September

Is September a good time to visit Kitakami?

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

5.8
Sightseeing
1st-best month of the year
4.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Kitakami for sightseeing.

What to pack for Kitakami in September

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

In September, Kitakami sees daytime highs around 23°C and nights near 15°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Kitakami in September

The nearest coast averages about 22°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 63 km away) is warmest in August at about 22°C and coldest in March near 7°C.

It's comfortable for a long swim from Jul 21 to Oct 3 — about 2.5 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb8Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun17Cool
Jul20Cool
Aug22Refreshing
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Kitakami in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kitakami peaks around August 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Kitakami 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 Kitakami is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1620 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug11Good
Sep11Good
Oct11Good
Nov11Good
Dec9Good
Location & terrain

Where is Kitakami?

Kitakami sits at 39.3°N, 141.1°E, 63 m above sea level, in Japan. The nearest listed city is Kanegasaki, 9.0 km away.

Topography around Kitakami

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

Within 3 km, the terrain around Kitakami has only modest variations in elevation — a maximum elevation change of 211 m around an average of 77 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 707 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,980 m.

The land around Kitakami is covered by artificial surfaces (41%), trees (32%) and cropland (20%) within 3 km, trees (49%) and cropland (37%) within 16 km, and trees (78%) within 80 km.

3 km
211 m
16 km
707 m
80 km
1,980 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Kanegasaki 9.0 km · Hanamaki 11 km · Ōshū 17 km · Mizusawa 17 km · Hizume 30 km · Tōno 36 km · Yahaba 37 km · Ichinoseki 41 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 Kitakami (39.2833°, 141.1167°, elevation 63 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. 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).