Murakami weather in September

In September, Murakami sees average daytime highs of 25°C and overnight lows near 18°C, with 157 mm of rain across 14.2 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 22°C by the end. The sky is clear or mostly clear about 23% 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 42 min by month's end. Set against the rest of the year, September is Murakami's 5th-clearest and 9th-windiest month. For the whole year in context, see Murakami's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
18°
10th coldest
Rainfall
157 mm
14.2 wet days
Daylight
12 h 12 min
5:29 AM – 5:44 PM
Cloud cover
66%
5th clearest
Wind
9 km/h
9th windiest
Solar energy
3.89 kWh/m²
Travel score
5.9
out of 10

Murakami is city in Niigata Prefecture, Japan.

Density
50/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 27°C in the first days to 22°C by the end.

A typical September day in Murakami reaches about 25°C in the afternoon and slips back to 18°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°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°35°151015202530
Avg high (°C)Avg low (°C)
12721
22721
32721
42721
52720
62620
72620
82620
92620
102620
112619
122519
132519
142519
152519
162518
172418
182418
192418
202417
212317
222317
232317
242317
252316
262216
272216
282216
292216
302215

How September really feels in Murakami

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.

Murakami weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°20926.923.29.60.0
Feb / -1°14722.118.810.50.0
Mar / 14820.711.711.70.9
Apr14° / 12015.11.7133.5
May19° / 12°12613.10145.7
Jun23° / 17°15613.1014.66.1
Jul27° / 21°28617.4014.45.2
Aug28° / 22°20714.8013.55.2
Sep25° / 18°15714.2012.35.9
Oct19° / 12°16716.10115.1
Nov12° / 18319.71.69.92.6
Dec / 22225.614.59.40.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14357
24258
34258
44159
54159
64159
74159
84159
94159
104060
114060
123961
133961
143763
153763
163664
173664
183664
193664
203664
213565
223565
233664
243664
253664
263763
273664
283763
293763
303763

Chance of precipitation in September

Any precipitation

Murakami gets around 157 mm of rain over 14.2 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 48% and peaks near 50% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
149
249
349
449
549
649
749
849
949
1049
1149
1249
1349
1449
1548
1648
1748
1847
1947
2047
2147
2247
2347
2447
2547
2647
2748
2849
2949
3050

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 41% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1052041322
2052242301
3052342281
4162442271
5162542251
6172642241
7182741221
8192741211
92112840191
102122839181
113132938171
124152937150
135163035140
146183033130
157193132110
168213130100
17923322890
181124322580
191226322370
201428322160
211529321950
221730311840
231932311630
242033301420
252234301220
262435291110
27253628910
28273727810
29283826710
30303925600

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 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 72 minutes over September. Sunrise moves from 5:16 AM to 5:42 AM, and sunset from 6:08 PM to 5:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:166:08
212.85:176:06
312.85:176:05
412.75:186:03
512.75:196:02
612.75:206:00
712.65:215:58
812.65:225:57
912.55:235:55
1012.55:245:53
1112.55:255:52
1212.45:265:50
1312.45:265:49
1412.35:275:47
1512.35:285:45
1612.25:295:44
1712.25:305:42
1812.25:315:40
1912.15:325:39
2012.15:335:37
2112.05:345:35
2212.05:345:34
2311.95:355:32
2411.95:365:31
2511.95:375:29
2611.85:385:27
2711.85:395:26
2811.75:405:24
2911.75:415:23
3011.75:425:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.89 kWh/m².

For context, solar energy here swings from a low near 1.65 kWh/m² to a high of 5.57 kWh/m² in May across the year — September's 3.89 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.4Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.2Bright
84.1Bright
94.1Bright
104.0Bright
114.0Bright
124.0Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.6Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.4Moderate
Planning a trip in September

Hazard calendar for Murakami

In seasonPeak

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

Murakami 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 Murakami?

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

5.9
Sightseeing
2nd-best month of the year
5.1
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Murakami for sightseeing.

What to pack for Murakami in September

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

In September, Murakami sees daytime highs around 25°C and nights near 18°C. Pack rain gear. Worth having: light clothes. About 14 days see rain.

rain gearlight clothes

Sea temperature near Murakami 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 15 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 21 to Oct 29 — about 4.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb10Bracing
Mar9Bracing
Apr11Bracing
May15Bracing
Jun20Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov18Cool
Dec15Bracing

UV index in Murakami in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Murakami peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highModerateLowAug 15UV 9Dec 21UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Murakami 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 Murakami 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 1421 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May19Moderate
Jun15Moderate
Jul14Moderate
Aug12Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Murakami?

Murakami sits at 38.2°N, 139.5°E, 4 m above sea level, in Japan. The nearest listed city is Tainai, 20 km away.

Topography around Murakami

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

Within 3 km, the terrain around Murakami has significant variations in elevation — a maximum elevation change of 402 m around an average of 54 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 998 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,110 m.

The land around Murakami is covered by trees (51%), cropland (22%) and artificial surfaces (21%) within 3 km, trees (52%) and water (33%) within 16 km, and trees (50%) and water (36%) within 80 km.

3 km
402 m
16 km
998 m
80 km
2,110 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Tainai 20 km · Shibata 34 km · Suibara 48 km · Agano 50 km · Nagai 50 km · Kameda-honchō 52 km · Niigata 52 km · Niitsu-honchō 58 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 Murakami (38.2333°, 139.4833°, 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. 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).