The Frontier Gazette & Almanack
“Fair Warning for Every Town Under the Sky” · Est. 1881
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Ōtsu Weather in September

Ōtsu in September

The short of it: Ōtsu in September averages a high of 27 °C (81 °F) and a low of 20 °C (68 °F), with 181 mm (7.1 in) of rain and about 12 h 21 min of daylight. Rated 3 of 5 for a visit; the best months are May and October. Source: TerraClimate climate normals, 1991–2020.

Average high 27° · low 20° · rain 181 mm · daylight 12 h 21 min

✦✦✦ Fair for a visit · best months: May & October

Thirty years of records give Ōtsu an average September high of 27°, a low of 20° and some 181 mm of rain. Highs fall 5° against August, to near 27°; nights run about 20°. Wet spells are common — about 181 mm, the 3rd wettest month.

The sun is up for about 12 h 21 min in mid-September, 67 minutes less than a month before.

For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are May and October.

Against its neighbours, Ōtsu runs cooler than most and drier than most in September. Kusatsu, 9 km to the ENE, is 1° warmer by day.

September in Ōtsu, by the numbers

Warmth rank
3rd warmest of 12
Rain rank
3rd wettest of 12
Versus August
5° colder, 51 mm more rain
Versus October
6° warmer
Day–night spread
7°
Snow season
seldom any
Daylight, mid-month
12 h 21 min
Average wind
8 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
KusatsuShiga9 km ENE29°20°185 mm
KyotoKyoto11 km WNW29°20°185 mm
Kamigyō-kuKyoto11 km WNW29°20°185 mm
MoriyamaShiga13 km NE28°20°183 mm
UjiKyoto13 km SSW28°20°179 mm
KōtariKyoto17 km WSW29°21°174 mm
ŌmihachimanShiga25 km NE28°20°179 mm
KameokaKyoto26 km W28°20°174 mm

The Almanac · Ōtsu Month by Month

Climate normals 1991–2020 · pick a month
PrecipitationAverage highAverage low
Fair
The Almanac Speaks
September
✦✦✦✦✦

Highs fall 5° against August, to near 27°; nights run about 20°. Wet spells are common — about 181 mm, the 3rd wettest month.

Climate of Ōtsu by month
MonthHighLowRainWindDaylightVisit
January8°1°78 mm8 km/h10 h 3 min✦
February8°1°74 mm9 km/h10 h 52 min✦
March12°3°113 mm9 km/h11 h 52 min✦✦
April18°8°129 mm9 km/h13 h 2 min✦✦✦
May23°14°142 mm8 km/h13 h 59 min✦✦✦
June26°18°182 mm8 km/h14 h 30 min✦✦✦
July30°22°194 mm8 km/h14 h 17 min✦✦
August32°24°130 mm9 km/h13 h 28 min✦✦
September27°20°181 mm8 km/h12 h 21 min✦✦✦
October21°14°153 mm8 km/h11 h 14 min✦✦✦
November16°8°77 mm7 km/h10 h 16 min✦✦✦
December10°3°70 mm8 km/h9 h 49 min✦✦✦

Questions Readers Ask about Ōtsu in September

Answered from the wire & the Almanac

What is the weather like in Ōtsu in September?

Days average 27 °C (81 °F) and nights 20 °C (68 °F), with about 181 mm (7.1 in) of rain over the month. Highs fall 5° against August, to near 27°; nights run about 20°. Wet spells are common — about 181 mm, the 3rd wettest month.

Is September a good time to visit Ōtsu?

The Almanac gives September 3 of 5 (fair). The best months are May and October.

How long are the days in Ōtsu in September?

In mid-September the sun is up for about 12 h 21 min. The days are shortening — from 9 h 49 min in December to 14 h 30 min in June.

Does it snow in Ōtsu in September?

Hardly — September nights average 20 °C (68 °F), above freezing.

What should I pack for Ōtsu in September?

Light clothes and a jacket for the evening, plus a good raincoat — it is a wet month.

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The Editor’s Remark

“Weather is the only news that never grows stale. Each morning the sky writes its own front page, and we at Wanted Weather are but its telegraph operators.”— J. Whitmore, Editor
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