Billings in September

8.3out of 10

Yes, a good time to go

Warm and comfortable: highs around 25°C. Some rain: about 6 rainy days.

25°CAvg high
10°CAvg low
6Rainy days (35 mm)
12:18 hDaylight
06:59Sunrise · 19:17 Sunset

Why this score

  • Warm and comfortable: highs around 25°C
  • Some rain: about 6 rainy days

What to wear and pack

  • T-shirts and light layers
  • A light jacket for cooler evenings

How reliable is the forecast?

Rainfall in September is fairly consistent from year to year (2.5 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

2° -7° J 4° -6° F 11° -2° M 16° 2° A 21° 7° M 26° 12° J 32° 15° J 31° 15° A 25° 10° S 16° 4° O 8° -2° N 2° -6° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 2°C-7°C22 mm 6– – 4.6
February 4°C-6°C20 mm 6– – 5.0
March 11°C-2°C31 mm 7– – 6.0
April 16°C2°C59 mm 10– – 6.6
May 21°C7°C65 mm 10– – 7.5
June 26°C12°C53 mm 9– – 7.9
July 32°C15°C24 mm 5– – 7.6
August 31°C15°C18 mm 4– – 8.0
September 25°C10°C35 mm 6– – 8.3
October 16°C4°C47 mm 7– – 7.1
November 8°C-2°C23 mm 6– – 5.7
December 2°C-6°C20 mm 5– – 4.7

Frequently asked questions

How hot is Billings in September?

Daytime highs average 25°C and nights about 10°C.

When is the best time to visit Billings?

The best months are September, August, June.