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

Rianápolis in September

The short of it: Rianápolis in September averages a high of 33 °C (91 °F) and a low of 20 °C (68 °F), with 28 mm (1.1 in) of rain and about 12 h 2 min of daylight. Rated 4 of 5 for a visit; the best months are June and July. Source: TerraClimate climate normals, 1991–2020.

Average high 33° · low 20° · rain 28 mm · daylight 12 h 2 min

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

September in Rianápolis brings afternoons near 33° and nights around 20°, with about 28 mm of rain over the month. The height of summer in Rianápolis, with afternoons near 33°. Rain is modest, about 28 mm, the 8th wettest month.

The sun is up for about 12 h 2 min in mid-September, 26 minutes more than a month before.

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 June and July.

Against its neighbours, Rianápolis runs cooler than most and about as wet in September. Rialma, 17 km to the NNW, sees much the same highs.

September in Rianápolis, by the numbers

Warmth rank
1st warmest of 12
Rain rank
8th wettest of 12
Versus August
1° warmer, 24 mm more rain
Versus October
1° warmer
Day–night spread
13°
Snow season
seldom any
Daylight, mid-month
12 h 2 min
Average wind
7 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
RialmaGoiás17 km NNW33°20°28 mm
CeresGoiás18 km NNW33°20°28 mm
Santa IsabelGoiás19 km NNE33°20°26 mm
UruanaGoiás20 km WSW33°20°31 mm
Carmo do Rio VerdeGoiás24 km WNW33°20°29 mm
Nova GlóriaGoiás34 km N33°20°25 mm
São PatrícioGoiás35 km WNW33°20°29 mm
Ipiranga de GoiásGoiás35 km NNW33°20°27 mm

The Almanac · Rianápolis Month by Month

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

The height of summer in Rianápolis, with afternoons near 33°. Rain is modest, about 28 mm, the 8th wettest month.

Climate of Rianápolis by month
MonthHighLowRainWindDaylightVisit
January29°20°296 mm6 km/h12 h 57 min✦✦
February30°20°261 mm5 km/h12 h 37 min✦✦
March30°20°206 mm4 km/h12 h 13 min✦✦
April30°20°112 mm5 km/h11 h 46 min✦✦
May30°18°20 mm5 km/h11 h 24 min✦✦✦✦
June29°16°6.0 mm5 km/h11 h 13 min✦✦✦✦
July30°15°1.0 mm6 km/h11 h 17 min✦✦✦✦
August32°17°4.0 mm7 km/h11 h 36 min✦✦✦✦
September33°20°28 mm7 km/h12 h 2 min✦✦✦✦
October32°21°114 mm6 km/h12 h 28 min✦✦
November30°20°209 mm5 km/h12 h 51 min✦✦
December30°20°264 mm6 km/h13 h 2 min✦✦

Questions Readers Ask about Rianápolis in September

Answered from the wire & the Almanac

What is the weather like in Rianápolis in September?

Days average 33 °C (91 °F) and nights 20 °C (68 °F), with about 28 mm (1.1 in) of rain over the month. The height of summer in Rianápolis, with afternoons near 33°. Rain is modest, about 28 mm, the 8th wettest month.

Is September a good time to visit Rianápolis?

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

How long are the days in Rianápolis in September?

In mid-September the sun is up for about 12 h 2 min. The days are lengthening — from 11 h 13 min in June to 13 h 2 min in December.

Does it snow in Rianápolis in September?

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

What should I pack for Rianápolis 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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