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

Boyanup in September

The short of it: Boyanup in September averages a high of 19 °C (67 °F) and a low of 9 °C (47 °F), with 88 mm (3.5 in) of rain and about 11 h 56 min of daylight. Rated 3 of 5 for a visit; the best months are April and November. Source: TerraClimate climate normals, 1991–2020.

Average high 19° · low 9° · rain 88 mm · daylight 11 h 56 min

✦✦✦ Fair for a visit · best months: April & November

Thirty years of records give Boyanup an average September high of 19°, a low of 9° and some 88 mm of rain. Much like August: highs about 19°, nights near 9°. Easy travelling weather. Wet spells are common — about 88 mm, the 5th wettest month.

The sun is up for about 11 h 56 min in mid-September, 63 minutes more than a month before.

For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are April and November.

Against its neighbours, Boyanup runs warmer than most and about as wet in September. Argyle, 8 km to the SSE, sees much the same highs.

September in Boyanup, by the numbers

Warmth rank
9th warmest of 12
Rain rank
5th wettest of 12
Versus August
1° warmer, 36 mm less rain
Versus October
3° colder
Day–night spread
11°
Snow season
seldom any
Daylight, mid-month
11 h 56 min
Average wind
18 km/h

Neighbouring Towns

September averages · distance by the crow’s flight
TownDistanceHighLowRain
ArgyleWestern Australia8 km SSE19°8°93 mm
GelorupWestern Australia10 km NW19°9°80 mm
Dardanup WestWestern Australia11 km N20°9°87 mm
DonnybrookWestern Australia13 km SE19°8°96 mm
StrathamWestern Australia13 km W19°9°77 mm
DalyellupWestern Australia13 km NW19°9°78 mm
College GroveWestern Australia14 km NNW20°9°81 mm
UsherWestern Australia15 km NW20°9°81 mm

The Almanac · Boyanup Month by Month

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

Much like August: highs about 19°, nights near 9°. Easy travelling weather. Wet spells are common — about 88 mm, the 5th wettest month.

Climate of Boyanup by month
MonthHighLowRainWindDaylightVisit
January31°15°11 mm18 km/h14 h 8 min✦✦✦✦
February31°16°12 mm19 km/h13 h 20 min✦✦✦✦
March29°15°30 mm17 km/h12 h 23 min✦✦✦✦✦
April25°12°36 mm14 km/h11 h 18 min✦✦✦✦✦
May22°10°110 mm12 km/h10 h 25 min✦✦✦
June19°8°136 mm14 km/h9 h 57 min✦✦✦
July18°8°150 mm14 km/h10 h 8 min✦✦✦
August18°8°124 mm16 km/h10 h 54 min✦✦✦
September19°9°88 mm18 km/h11 h 56 min✦✦✦
October22°10°48 mm17 km/h13 h 0 min✦✦✦✦
November26°12°36 mm17 km/h13 h 55 min✦✦✦✦✦
December29°13°14 mm18 km/h14 h 22 min✦✦✦✦✦

Questions Readers Ask about Boyanup in September

Answered from the wire & the Almanac

What is the weather like in Boyanup in September?

Days average 19 °C (67 °F) and nights 9 °C (47 °F), with about 88 mm (3.5 in) of rain over the month. Much like August: highs about 19°, nights near 9°. Easy travelling weather. Wet spells are common — about 88 mm, the 5th wettest month.

Is September a good time to visit Boyanup?

The Almanac gives September 3 of 5 (fair). The best months are April and November.

How long are the days in Boyanup in September?

In mid-September the sun is up for about 11 h 56 min. The days are lengthening — from 9 h 57 min in June to 14 h 22 min in December.

Does it snow in Boyanup in September?

Hardly — September nights average 9 °C (47 °F), above freezing.

What should I pack for Boyanup in September?

Layers, a warm coat and stout boots, 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