Tamaru weather in September

In September, Tamaru sees average daytime highs of 27°C and overnight lows near 22°C, with 247 mm of rain across 15.3 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 25°C by the end. The sky is clear or mostly clear about 30% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Tamaru's 9th-clearest and 9th-windiest month. For the whole year in context, see Tamaru's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
22°
10th coldest
Rainfall
247 mm
15.3 wet days
Daylight
12 h 12 min
5:41 AM – 5:54 PM
Cloud cover
62%
9th clearest
Wind
13 km/h
9th windiest
Solar energy
4.39 kWh/m²
Travel score
5.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 25°C by the end.

A typical September day in Tamaru reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 30°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92824
102823
112823
122823
132823
142823
152823
162723
172722
182722
192722
202722
212622
222621
232621
242621
252621
262621
272521
282520
292520
302520

How September really feels in Tamaru

Once humidity and wind are folded in, September averages 3 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
3
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tamaru weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan10° / 705.9102.5
Feb11° / 72710.72.8
Mar14° / 12610.411.74.1
Apr18° / 12°1371012.85.8
May22° / 16°16411.813.86.4
Jun25° / 20°2351514.35.6
Jul29° / 24°19114.514.14.7
Aug30° / 25°14413.613.34.4
Sep27° / 22°24715.312.25.4
Oct22° / 17°25412.311.16.5
Nov17° / 12°1108.210.25.9
Dec12° / 706.49.73.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14456
24555
34555
44555
54555
64555
74456
84456
94555
104555
114456
124456
134456
144456
154555
164357
174357
184456
194357
204357
214258
224357
234456
244456
254456
264456
274555
284654
294555
304555

Chance of precipitation in September

Any precipitation

Tamaru gets around 247 mm of rain over 15.3 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 51% and peaks near 53% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
152
252
352
452
552
652
753
853
953
1052
1152
1252
1351
1451
1551
1650
1750
1850
1950
2050
2150
2250
2350
2450
2550
2650
2750
2850
2950
3050

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 72% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1015214627
2015224625
3015234624
4125244523
5126254522
6126264420
7137274419
8137284318
9138294216
10149304115
111410314014
121511323813
132512323712
142613333511
152615333410
16371633329
17381833308
18381934297
19492133277
204102233256
215112432235
226112532224
236122631204
247132831193
258132930173
268143030162
279153129152
2810163228131
2911173227121
3011183327111

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:30 AM to 5:52 AM, and sunset from 6:16 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:306:16
212.75:316:14
312.75:326:13
412.65:336:12
512.65:336:10
612.65:346:09
712.55:356:07
812.55:366:06
912.55:366:04
1012.45:376:03
1112.45:386:02
1212.45:386:00
1312.35:395:59
1412.35:405:57
1512.25:415:56
1612.25:415:54
1712.25:425:53
1812.15:435:51
1912.15:445:50
2012.15:445:48
2112.05:455:47
2212.05:465:45
2312.05:475:44
2411.95:475:42
2511.95:485:41
2611.85:495:39
2711.85:505:38
2811.85:505:37
2911.75:515:35
3011.75:525:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.39 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 5.67 kWh/m² in May across the year — September's 4.39 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
34.9Bright
44.9Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.5Bright
154.4Bright
164.4Bright
174.3Bright
184.3Bright
194.3Bright
204.2Bright
214.2Bright
224.2Bright
234.1Bright
244.1Bright
254.0Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in September

Hazard calendar for Tamaru

In seasonPeak

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

Tamaru 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 Tamaru?

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

5.4
Sightseeing
6th-best month of the year
5.8
Beach & pool
3rd-best month of the year

September is a reasonable time to visit Tamaru for sightseeing.

What to pack for Tamaru in September

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

In September, Tamaru sees daytime highs around 27°C and nights near 22°C. Pack light clothes and rain gear. About 15 days see rain.

light clothesrain gear

Sea temperature near Tamaru in September

The nearest coast averages about 26°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 27°C and coldest in February near 14°C.

It's comfortable for a long swim from May 31 to Nov 11 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Tamaru in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tamaru peaks around July 13 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 13UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Tamaru 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 Tamaru is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (July, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2326 µg/m³Jul 2316 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb21Moderate
Mar26Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep17Moderate
Oct19Moderate
Nov21Moderate
Dec18Moderate
Location & terrain

Where is Tamaru?

Tamaru sits at 34.5°N, 136.6°E, 17 m above sea level, in Japan. The nearest listed city is Saikū, 6.0 km away.

Topography around Tamaru

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

Within 3 km, the terrain around Tamaru has only modest variations in elevation — a maximum elevation change of 237 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 744 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,887 m.

The land around Tamaru is covered by cropland (41%), trees (32%) and artificial surfaces (22%) within 3 km, trees (54%) within 16 km, and trees (42%) and water (40%) within 80 km.

3 km
237 m
16 km
744 m
80 km
1,887 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Saikū 6.0 km · Ise 6.0 km · Matsusaka 14 km · Toba 19 km · Shima 25 km · Hisai-motomachi 25 km · Tsu 30 km · Kawage 37 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 Tamaru (34.4833°, 136.6333°, elevation 17 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).