Tsuruoka weather in September

In September, Tsuruoka sees average daytime highs of 23°C and overnight lows near 19°C, with 180 mm of rain across 15.5 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 24% 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 Tsuruoka's 5th-clearest and 9th-windiest month. For the whole year in context, see Tsuruoka's year-round climate.

Daytime high
23°
3rd warmest
Overnight low
19°
10th coldest
Rainfall
180 mm
15.5 wet days
Daylight
12 h 12 min
5:28 AM – 5:42 PM
Cloud cover
66%
5th clearest
Wind
12 km/h
9th windiest
Solar energy
3.84 kWh/m²
Travel score
5.7
out of 10

Tsuruoka is city in Yamagata Prefecture, Japan.

Density
96/km²
people per km²
Founded
1889

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 21°C by the end.

A typical September day in Tsuruoka reaches about 23°C in the afternoon and slips back to 19°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 26°C. Set against its neighbours, September runs about 3°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12521
22521
32521
42521
52521
62521
72521
82520
92420
102420
112420
122420
132419
142419
152319
162319
172319
182318
192318
202218
212218
222218
232217
242217
252117
262117
272117
282116
292116
302116

How September really feels in Tsuruoka

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.

Tsuruoka weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 28527.722.89.60.0
Feb / 19022.918.810.50.0
Mar / 16920.611.511.70.5
Apr12° / 13215.41.5132.7
May17° / 12°13413.7014.15.0
Jun21° / 17°14812.8014.75.8
Jul25° / 21°25917.2014.45.6
Aug26° / 22°20315.7013.55.7
Sep23° / 19°18015.5012.35.7
Oct18° / 13°20316.70114.8
Nov12° / 23820.92.69.92.3
Dec / 31126.3159.30.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% 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 61%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14258
24258
34258
44258
54258
64258
74159
84159
94159
104159
114159
124159
134159
144159
153961
163862
173862
183862
193862
203862
213763
223763
233763
243664
253763
263763
273763
283763
293763
303763

Chance of precipitation in September

Any precipitation

Tsuruoka gets around 180 mm of rain over 15.5 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 53% and peaks near 55% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
154
254
354
454
554
654
754
855
955
1055
1155
1255
1355
1455
1554
1654
1753
1853
1952
2052
2151
2251
2351
2451
2551
2651
2751
2852
2952
3052

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 28% of days. Sticky, muggy-or-worse air turns up on roughly 39% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1062239303
2062339283
3162439273
4172539253
5182639242
6182739232
7192739222
82112838202
92122837191
103132836181
114152935171
125162934151
136182933141
147192931131
158212929120
1610223027110
1711243026100
181325302490
191427302270
201628302060
211829301860
221930301650
232131291440
242332291330
252533291120
262734281020
27283527910
28303526710
29323625710
30343623600

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
111calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 5:14 AM to 5:41 AM, and sunset from 6:07 PM to 5:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:146:07
212.85:156:05
312.85:166:04
412.85:176:02
512.75:186:01
612.75:185:59
712.65:195:57
812.65:205:56
912.55:215:54
1012.55:225:52
1112.55:235:51
1212.45:245:49
1312.45:255:47
1412.35:265:46
1512.35:275:44
1612.25:285:42
1712.25:295:41
1812.25:295:39
1912.15:305:37
2012.15:315:36
2112.05:325:34
2212.05:335:32
2311.95:345:31
2411.95:355:29
2511.95:365:28
2611.85:375:26
2711.85:385:24
2811.75:395:23
2911.75:405:21
3011.65:415:19

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.84 kWh/m².

For context, solar energy here swings from a low near 1.56 kWh/m² to a high of 5.47 kWh/m² in May across the year — September's 3.84 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.2Bright
44.2Bright
54.2Bright
64.1Bright
74.1Bright
84.0Bright
94.0Bright
104.0Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Hazard calendar for Tsuruoka

In seasonPeak

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

Tsuruoka 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 Tsuruoka?

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

5.7
Sightseeing
2nd-best month of the year
4.4
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Tsuruoka for sightseeing.

What to pack for Tsuruoka in September

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

In September, Tsuruoka sees daytime highs around 23°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 16 days see rain.

rain gearlight clothes

Sea temperature near Tsuruoka in September

The nearest coast averages about 25°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 20 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 24 to Oct 27 — about 4.1 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec15Bracing

UV index in Tsuruoka 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 Tsuruoka peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowAug 17UV 9Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul7High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Tsuruoka 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 Tsuruoka is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (September, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1420 µg/m³Sep 209 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr20Moderate
May18Moderate
Jun13Moderate
Jul11Good
Aug10Good
Sep9Good
Oct9Good
Nov9Good
Dec9Good
Location & terrain

Where is Tsuruoka?

Tsuruoka sits at 38.7°N, 139.8°E, 13 m above sea level, in Japan. The nearest listed city is Shonai, 16 km away.

Topography around Tsuruoka

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

Within 3 km, the terrain around Tsuruoka has only modest variations in elevation — a maximum elevation change of 103 m around an average of 18 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 954 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,184 m.

The land around Tsuruoka is covered by artificial surfaces (51%) and cropland (36%) within 3 km, trees (45%) and cropland (32%) within 16 km, and trees (54%) and water (36%) within 80 km.

3 km
103 m
16 km
954 m
80 km
2,184 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Shonai 16 km · Sakata 22 km · Shinjō 42 km · Obanazawa 52 km · Yachi 54 km · Sagae 55 km · Murayama 59 km · Higashine 59 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 Tsuruoka (38.7217°, 139.8217°, elevation 13 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).