Isle of Lewis in July

5.7out of 10

Possible, with caveats

Mild: highs around 17°C. Very wet: about 19 rainy days.

17°CAvg high
11°CAvg low
19Rainy days (88 mm)
17:16 hDaylight
04:53Sunrise · 22:09 Sunset

Why this score

  • Mild: highs around 17°C
  • Very wet: about 19 rainy days
  • Rain varies a lot between years (±4.2 days)

What to wear and pack

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

How reliable is the forecast?

Rain in July varies a lot between years (±4.2 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.

Year at a glance

8° 4° J 8° 4° F 9° 4° M 11° 5° A 13° 7° M 15° 10° J 17° 11° J 17° 11° A 15° 10° S 12° 8° O 10° 6° N 8° 4° D Rainy days

Weather by month

MonthAvg highAvg lowRainfall Rainy daysHumiditySunshine Score
January 8°C4°C100 mm 16– – 4.5
February 8°C4°C82 mm 15– – 4.8
March 9°C4°C84 mm 17– – 4.7
April 11°C5°C74 mm 16– – 5.1
May 13°C7°C76 mm 17– – 5.4
June 15°C10°C79 mm 17– – 5.7
July 17°C11°C88 mm 19– – 5.7
August 17°C11°C94 mm 18– – 5.8
September 15°C10°C89 mm 16– – 5.8
October 12°C8°C103 mm 17– – 5.1
November 10°C6°C91 mm 16– – 4.9
December 8°C4°C90 mm 16– – 4.7

Frequently asked questions

How hot is Isle of Lewis in July?

Daytime highs average 17°C and nights about 11°C.

When is the best time to visit Isle of Lewis?

The best months are August, September, June, July.