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

Sleman Weather in September

Sleman in September

The short of it: Sleman in September averages a high of 30 °C (87 °F) and a low of 21 °C (71 °F), with 32 mm (1.3 in) of rain and about 12 h 4 min of daylight. Rated 4 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.

Average high 30° · low 21° · rain 32 mm · daylight 12 h 4 min

✦✦✦✦ Recommended for a visit · best months: July & August

September in Sleman brings afternoons near 30° and nights around 21°, with about 32 mm of rain over the month. Days run hot, near 30° in the afternoon; ride early and rest at noon. Rain is modest, about 32 mm, the 10th wettest month.

The sun is up for about 12 h 4 min in mid-September.

For the traveller: pack linen, a wide hat and water. The Almanac rates September 4 of 5 for a visit; the finest months here are July and August.

Against its neighbours, Sleman runs cooler than most and wetter than most in September. Melati, 2 km to the SSE, sees much the same highs.

September in Sleman, by the numbers

Warmth rank
6th warmest of 12
Rain rank
10th wettest of 12
Versus August
about the same, 11 mm more rain
Versus October
1° colder
Day–night spread
9°
Snow season
seldom any
Daylight, mid-month
12 h 4 min
Average wind
8 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
MelatiYogyakarta2 km SSE30°21°32 mm
GodeanYogyakarta9 km SW31°22°32 mm
Pugeran MaguwoharjoYogyakarta9 km SE31°22°26 mm
Gamping LorYogyakarta9 km SSW31°22°32 mm
YogyakartaYogyakarta10 km S31°22°31 mm
DepokYogyakarta10 km ESE31°22°26 mm
KasihanYogyakarta13 km SSW31°22°32 mm
Candi PrambananCentral Java16 km ESE31°21°26 mm

The Almanac · Sleman Month by Month

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

Days run hot, near 30° in the afternoon; ride early and rest at noon. Rain is modest, about 32 mm, the 10th wettest month.

Climate of Sleman by month
MonthHighLowRainWindDaylightVisit
January30°23°367 mm5 km/h12 h 31 min✦✦
February30°23°362 mm5 km/h12 h 22 min✦✦
March30°23°346 mm5 km/h12 h 10 min✦✦
April31°23°232 mm5 km/h11 h 57 min✦✦
May31°23°126 mm6 km/h11 h 46 min✦✦
June31°22°70 mm7 km/h11 h 41 min✦✦✦
July30°21°29 mm7 km/h11 h 43 min✦✦✦✦
August30°21°21 mm8 km/h11 h 52 min✦✦✦✦
September30°21°32 mm8 km/h12 h 4 min✦✦✦✦
October31°23°108 mm6 km/h12 h 17 min✦✦
November31°23°274 mm4 km/h12 h 29 min✦✦
December30°23°366 mm5 km/h12 h 34 min✦✦

Questions Readers Ask about Sleman in September

Answered from the wire & the Almanac

What is the weather like in Sleman in September?

Days average 30 °C (87 °F) and nights 21 °C (71 °F), with about 32 mm (1.3 in) of rain over the month. Days run hot, near 30° in the afternoon; ride early and rest at noon. Rain is modest, about 32 mm, the 10th wettest month.

Is September a good time to visit Sleman?

The Almanac gives September 4 of 5 (recommended). The best months are July and August.

How long are the days in Sleman in September?

In mid-September the sun is up for about 12 h 4 min. The days are lengthening — from 11 h 41 min in June to 12 h 34 min in December.

Does it snow in Sleman in September?

Hardly — September nights average 21 °C (71 °F), above freezing.

What should I pack for Sleman in September?

Linen, a wide hat, sun cream and water.

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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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