Longmont in August

8.0out of 10

Yes, a good time to go

Warm and comfortable: highs around 30°C. Some rain: about 7 rainy days.

30°CAvg high
14°CAvg low
7Rainy days (39 mm)
13:36 hDaylight
06:17Sunrise · 19:52 Sunset

Why this score

  • Warm and comfortable: highs around 30°C
  • Some rain: about 7 rainy days

What to wear and pack

  • T-shirts and light layers
  • Shorts or a light skirt
  • Sunscreen, sunglasses and a hat

How reliable is the forecast?

Rainfall in August is fairly consistent from year to year (2.6 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

6° -7° J 8° -6° F 14° -2° M 17° 2° A 22° 7° M 28° 12° J 31° 15° J 30° 14° A 26° 10° S 19° 3° O 11° -3° N 6° -7° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 6°C-7°C19 mm 5– – 5.3
February 8°C-6°C20 mm 5– – 5.6
March 14°C-2°C42 mm 7– – 6.4
April 17°C2°C67 mm 9– – 7.0
May 22°C7°C87 mm 12– – 7.4
June 28°C12°C53 mm 9– – 7.9
July 31°C15°C42 mm 8– – 7.6
August 30°C14°C39 mm 7– – 8.0
September 26°C10°C39 mm 6– – 8.3
October 19°C3°C41 mm 7– – 7.7
November 11°C-3°C28 mm 6– – 6.2
December 6°C-7°C18 mm 4– – 5.3

Frequently asked questions

How hot is Longmont in August?

Daytime highs average 30°C and nights about 14°C.

When is the best time to visit Longmont?

The best months are September, August, June.