Rikuzen-Takata weather in September

In September, Rikuzen-Takata sees average daytime highs of 21°C and overnight lows near 18°C, with 188 mm of rain across 14.1 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 23°C in the first days to 20°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 36 min by month's end. Set against the rest of the year, September is Rikuzen-Takata's 9th-clearest and 9th-windiest month. For the whole year in context, see Rikuzen-Takata's year-round climate.

Daytime high
21°
2nd warmest
Overnight low
18°
10th coldest
Rainfall
188 mm
14.1 wet days
Daylight
12 h 18 min
5:20 AM – 5:35 PM
Cloud cover
69%
9th clearest
Wind
14 km/h
9th windiest
Solar energy
3.88 kWh/m²
Travel score
5.7
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 20°C by the end.

A typical September day in Rikuzen-Takata reaches about 21°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 24°C. Set against its neighbours, September runs about 2°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12320
22320
32320
42320
52320
62320
72220
82220
92219
102219
112219
122219
132219
142219
152219
162118
172118
182118
192118
202118
212117
222117
232017
242017
252017
262017
272016
282016
292016
301916

How September really feels in Rikuzen-Takata

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.

Rikuzen-Takata 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 / -1°557.74.39.60.0
Feb / -1°507.24.710.50.0
Mar / 9910.94.111.70.6
Apr10° / 10910.91132.4
May14° / 11°12911.8014.14.0
Jun18° / 15°13812.4014.75.1
Jul21° / 19°17615.5014.55.5
Aug23° / 21°16013.7013.56.1
Sep21° / 18°18814.1012.35.7
Oct17° / 13°16010.90115.3
Nov12° / 828.90.39.93.3
Dec / 709.52.99.30.7

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 12% of September, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13466
23367
33466
43466
53565
63466
73565
83565
93466
103466
113565
123565
133466
143466
153367
163367
173367
183367
193466
203466
213466
223466
233664
243664
253664
263763
273862
283862
293961
303961

Chance of precipitation in September

Any precipitation

Rikuzen-Takata gets around 188 mm of rain over 14.1 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 47% and peaks near 50% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
147
248
348
448
549
649
749
849
950
1050
1150
1250
1349
1449
1549
1649
1749
1848
1948
2047
2147
2246
2345
2445
2544
2644
2743
2843
2942
3042

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 31% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
109303823
219303723
3110313722
4111313621
5112323620
6113323519
7114323418
8215333317
9316333316
10317333215
11418333114
12520332913
13721332812
14822332710
15102333259
16122432248
17132532227
18152632206
19172732185
20202732175
21222831154
22242931133
23262930123
24283029112
2530312992
2632312881
2733322671
2835332561
2937332460
3039342250

Wind in September

Winds average 14 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light 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 5:06 AM to 5:33 AM, and sunset from 6:00 PM to 5:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:066:00
212.95:075:58
312.85:085:57
412.85:095:55
512.75:105:53
612.75:115:52
712.65:125:50
812.65:135:49
912.65:145:47
1012.55:155:45
1112.55:165:44
1212.45:165:42
1312.45:175:40
1412.35:185:39
1512.35:195:37
1612.35:205:35
1712.25:215:34
1812.25:225:32
1912.15:235:30
2012.15:245:29
2112.05:255:27
2212.05:265:25
2311.95:275:23
2411.95:285:22
2511.95:295:20
2611.85:305:19
2711.85:315:17
2811.75:325:15
2911.75:325:14
3011.65:335:12

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.88 kWh/m².

For context, solar energy here swings from a low near 2.13 kWh/m² to a high of 5.56 kWh/m² in May across the year — September's 3.88 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.1Bright
54.1Bright
64.1Bright
74.0Bright
84.0Bright
94.0Moderate
104.0Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.5Moderate
Planning a trip in September

Hazard calendar for Rikuzen-Takata

In seasonPeak

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

Rikuzen-Takata 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 Rikuzen-Takata?

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
3.7
Beach & pool
2nd-best month of the year

September is a reasonable time to visit Rikuzen-Takata for sightseeing.

What to pack for Rikuzen-Takata in September

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

In September, Rikuzen-Takata sees daytime highs around 21°C and nights near 18°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Rikuzen-Takata 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 16 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 Rikuzen-Takata 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 Rikuzen-Takata 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 Rikuzen-Takata 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 Rikuzen-Takata is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1319 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun12Moderate
Jul11Good
Aug9Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Rikuzen-Takata?

Rikuzen-Takata sits at 39.0°N, 141.7°E, 44 m above sea level, in Japan. The nearest listed city is Ōfunato, 8.0 km away.

Topography around Rikuzen-Takata

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

Within 3 km, the terrain around Rikuzen-Takata has large variations in elevation — a maximum elevation change of 690 m around an average of 129 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 880 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,889 m.

The land around Rikuzen-Takata is covered by trees (53%) within 3 km, trees (67%) and water (26%) within 16 km, and trees (56%) and water (31%) within 80 km.

3 km
690 m
16 km
880 m
80 km
1,889 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ōfunato 8.0 km · Kesennuma 15 km · Kamaishi 34 km · Tōno 35 km · Ōshū 44 km · Ichinoseki 46 km · Mizusawa 47 km · Kanegasaki 50 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 Rikuzen-Takata (39.0203°, 141.6542°, elevation 44 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).