Barnstable in September

7.5out of 10

Yes, a good time to go

Mild: highs around 19°C. Some rain: about 8 rainy days.

19°CAvg high
17°CAvg low
8Rainy days (100 mm)
12:16 hDaylight
06:28Sunrise · 18:43 Sunset

Why this score

  • Mild: highs around 19°C
  • Some rain: about 8 rainy days

What to wear and pack

  • Layers you can add or remove
  • Rain jacket or compact umbrella

How reliable is the forecast?

Rainfall in September is fairly consistent from year to year (2.4 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

4° -1° J 3° -1° F 5° 1° M 9° 6° A 13° 10° M 18° 15° J 22° 19° J 22° 20° A 19° 17° S 15° 12° O 11° 7° N 7° 2° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 4°C-1°C110 mm 11– – 4.2
February 3°C-1°C95 mm 10– – 4.4
March 5°C1°C122 mm 11– – 4.6
April 9°C6°C109 mm 11– – 5.3
May 13°C10°C91 mm 10– – 6.2
June 18°C15°C82 mm 8– – 7.3
July 22°C19°C64 mm 7– – 8.1
August 22°C20°C81 mm 8– – 8.0
September 19°C17°C100 mm 8– – 7.5
October 15°C12°C123 mm 10– – 6.4
November 11°C7°C111 mm 10– – 5.8
December 7°C2°C131 mm 12– – 4.8

Frequently asked questions

How hot is Barnstable in September?

Daytime highs average 19°C and nights about 17°C.

When is the best time to visit Barnstable?

The best months are July, August, September.