Abashiri weather in September

In September, Abashiri sees average daytime highs of 19°C and overnight lows near 15°C, with 132 mm of rain across 11.9 wet days and about 12.3 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 27% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Abashiri's 6th-clearest and 9th-windiest month. For the whole year in context, see Abashiri's year-round climate.

Daytime high
19°
2nd warmest
Overnight low
15°
10th coldest
Rainfall
132 mm
11.9 wet days
Daylight
12 h 18 min
5:08 AM – 5:26 PM
Cloud cover
64%
6th clearest
Wind
15 km/h
9th windiest
Solar energy
3.65 kWh/m²
Travel score
5.6
out of 10

Abashiri is city in Hokkaido, Japan.

Density
76/km²
people per km²
Founded
1947

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 20°C in the first days to 17°C by the end.

A typical September day in Abashiri reaches about 19°C in the afternoon and slips back to 15°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°C. Set against its neighbours, September runs about 2°C cooler than August and about 5°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12017
22017
32017
42016
52016
62016
72016
82016
92016
102016
112016
121915
131915
141915
151915
161915
171915
181814
191814
201814
211814
221814
231813
241813
251713
261713
271713
281713
291712
301712

How September really feels in Abashiri

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.

Abashiri weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -7°6111.314.39.10.0
Feb-3° / -9°447.69.310.20.0
Mar / -5°569.4911.60.0
Apr / 6610.35.213.20.6
May11° / 8111.10.714.52.6
Jun15° / 11°8011.2015.24.3
Jul19° / 15°10411.30155.7
Aug21° / 17°13212.2013.85.9
Sep19° / 15°13211.9012.35.6
Oct14° / 9710.90.110.83.9
Nov / 7211.53.59.40.9
Dec / -4°7511.311.88.80.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23961
34060
44060
54060
64159
74060
84060
94060
104258
114159
124258
134258
144357
154456
164456
174456
184555
194555
204555
214654
224654
234753
244753
254753
264852
274852
284852
294951
305050

Chance of precipitation in September

Any precipitation

Abashiri gets around 132 mm of rain over 11.9 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 39% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
141
241
340
440
540
640
740
839
939
1039
1139
1239
1339
1439
1538
1638
1738
1838
1939
2039
2139
2239
2339
2440
2540
2640
2740
2840
2940
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1153534151
2163633141
3173632131
4193631131
5203630121
6223629111
7243628111
8263627100
9283626100
1030362490
1132362390
1235362180
1338352070
1441341860
1544341760
1647331550
1750321440
1853311240
1956301130
205929930
216327820
226526720
236725620
247024510
257322410
267521310
277620310
288018200
298117200
308415100

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3017light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 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 90 minutes over September. Sunrise moves from 4:51 AM to 5:25 AM, and sunset from 5:55 PM to 4:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.14:515:55
213.04:525:53
313.04:535:51
412.94:545:49
512.94:555:47
612.84:575:45
712.84:585:43
812.74:595:42
912.75:005:40
1012.65:015:38
1112.65:025:36
1212.55:045:34
1312.55:055:32
1412.45:065:30
1512.45:075:28
1612.35:085:26
1712.25:095:24
1812.25:115:22
1912.15:125:20
2012.15:135:18
2112.05:145:17
2212.05:155:15
2311.95:175:13
2411.95:185:11
2511.85:195:09
2611.85:205:07
2711.75:215:05
2811.75:235:03
2911.65:245:01
3011.65:254:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.65 kWh/m².

For context, solar energy here swings from a low near 1.54 kWh/m² to a high of 5.28 kWh/m² in May across the year — September's 3.65 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Bright
24.0Moderate
34.0Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.3Moderate
293.3Moderate
303.3Moderate
Planning a trip in September

Hazard calendar for Abashiri

In seasonPeak

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

Abashiri 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 Abashiri?

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

5.6
Sightseeing
3rd-best month of the year
2.3
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Abashiri for sightseeing.

What to pack for Abashiri in September

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

In September, Abashiri sees daytime highs around 19°C and nights near 15°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Abashiri in September

The nearest coast averages about 17°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 14 km away) is warmest in August at about 17°C and coldest in February near -1°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan0Bracing
Feb-1Bracing
Mar0Bracing
Apr1Bracing
May5Bracing
Jun10Bracing
Jul14Bracing
Aug17Cool
Sep17Cool
Oct12Bracing
Nov7Bracing
Dec3Bracing

UV index in Abashiri in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Abashiri peaks around August 16 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowAug 16UV 8Dec 20UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr5Moderate
May7High
Jun7High
Jul6High
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Abashiri?

Abashiri sits at 44.0°N, 144.3°E, 4 m above sea level, in Japan. The nearest listed city is Motomachi, 26 km away.

Nemuro

Topography around Abashiri

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

Within 3 km, the terrain around Abashiri has only modest variations in elevation — a maximum elevation change of 192 m around an average of 36 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,597 m.

The land around Abashiri is covered by water (43%), trees (28%) and artificial surfaces (22%) within 3 km, water (58%) within 16 km, and trees (49%) and water (36%) within 80 km.

3 km
192 m
16 km
272 m
80 km
1,597 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Motomachi 26 km · Kitami 39 km · Engaru 58 km · Nakashibetsu 77 km · Shibetsu 80 km · Mombetsu 82 km · Kushiro 117 km · Nemuro 131 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 Abashiri (44.0213°, 144.2697°, elevation 4 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).