July
Other strong months: August and June
46/100 weather score
United Kingdom · 1991–2020
Best time to visit
Scalloway
For Scalloway, July has the most comfortable weather in our climate comparison. Typical daytime highs are 14.4°C, nights average 10.1°C, and rainfall totals about 68 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJuly
Typical daytime high14.4°C
Typical night-time low10.1°C
July rainfall68 mm
July
Other strong months: August and January
10/100 weather score
July
Other strong months: August and June
65/100 weather score
Make the answer personal
Choose the weather
that suits you.
Set the daytime temperature and rainfall you are comfortable with. We will show only the months that meet every choice, using the measured 1991–2020 averages below.
3 months fit your choices for Scalloway
The lowest comfort score is 5 out of 100. January, February, March, November and December share that score. In January, that is mainly because days reach only 6.2°C, 18° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Scalloway?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Scalloway?
July is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 14.4°C and 68 mm of rain.
What is the hottest month in Scalloway?
August is hottest in this record, with a typical daytime high of 14.7°C and a night-time low of 10.5°C.
Which month has the least rain?
May has the lowest monthly rainfall total at 57 mm.
Is this a weather forecast?
No. These are long-term measured averages from 1991–2020. Check a current forecast before you travel.
Month by month
See how the weather
changes through the year.
The bars combine daytime temperature, night-time temperature and rainfall. The figures are measured historical averages, not a forecast for a particular trip.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 6.2°C | 2.1°C | 151 mm | 23 | 8.0°C | 6 h 37 | 5 | Strong coverage |
| February | 5.9°C | 1.7°C | 123 mm | 19.8 | 7.4°C | 8 h 59 | 5 | Strong coverage |
| March | 6.8°C | 2.4°C | 109 mm | 19.9 | 7.2°C | 11 h 33 | 5 | Strong coverage |
| April | 8.4°C | 3.8°C | 68 mm | 15.6 | 7.5°C | 14 h 27 | 12 | Strong coverage |
| May | 10.6°C | 5.5°C | 57 mm | 12.6 | 8.4°C | 17 h 07 | 27 | Strong coverage |
| June | 12.6°C | 8°C | 60 mm | 12.3 | 10.1°C | 18 h 51 | 38 | Strong coverage |
| July | 14.4°C | 10.1°C | 68 mm | 13.1 | 11.9°C | 18 h 08 | 46 | Strong coverage |
| August | 14.7°C | 10.5°C | 91 mm | 13.9 | 12.7°C | 15 h 39 | 43 | Strong coverage |
| September | 13°C | 9.1°C | 106 mm | 17 | 12.0°C | 12 h 46 | 31 | Strong coverage |
| October | 10.4°C | 6.6°C | 131 mm | 21 | 11.0°C | 9 h 59 | 10 | Strong coverage |
| November | 8.2°C | 4.2°C | 144 mm | 22.5 | 9.8°C | 7 h 21 | 5 | Strong coverage |
| December | 6.7°C | 2.4°C | 151 mm | 23.2 | 8.9°C | 5 h 52 | 5 | Strong coverage |
What has changed
Recent daytime highs are
0.9°C warmer in Scalloway.
Each bar shows the difference between the 2011–2025 average daytime high and the 1961–1990 average for the same month at the same station. A blank month does not have enough older observations for a reliable comparison.
Jan
+0.7
Feb
+1.2
Mar
+1.1
Apr
+0.9
May
+1.0
Jun
+0.7
Jul
+1.0
Aug
+0.7
Sep
+1.1
Oct
+0.6
Nov
+1.2
Dec
+1.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 12.8°C13 Jan 1947 | -8.9°C27 Jan 1952 | 87 mm10 Jan 1938 | 302 mm2015 · driest 1 mm in 1940 | 97 |
| February | 11.7°C17 Feb 1945 | -7.4°C24 Feb 2010 | 96 mm7 Feb 1931 | 252 mm1989 · driest 0 mm in 1935 | 97 |
| March | 13.3°C9 Mar 1961 | -8.3°C13 Mar 1947 | 94 mm4 Mar 1938 | 207 mm1994 · driest 17 mm in 1931 | 97 |
| April | 16.1°C16 Apr 1942 | -5.7°C7 Apr 1968 | 78 mm2 Apr 1935 | 148 mm1985 · driest 2 mm in 1974 | 97 |
| May | 20.7°C30 May 1992 | -2.2°C16 May 1934 | 82 mm18 May 1938 | 161 mm1938 · driest 7 mm in 1951 | 97 |
| June | 23.3°C30 Jun 1958 | -0.6°C5 Jun 1931 | 90 mm16 Jun 1938 | 153 mm1938 · driest 9 mm in 1933 | 97 |
| July | 23.4°C5 Jul 1991 | 3.5°C28 Jul 1965 | 107 mm8 Jul 1937 | 156 mm1988 · driest 1 mm in 1931 | 96 |
| August | 22.1°C12 Aug 1997 | 2.8°C22 Aug 1973 | 87 mm9 Aug 2014 | 184 mm2014 · driest 1 mm in 1947 | 96 |
| September | 20.7°C7 Sep 2023 | -0.6°C30 Sep 1954 | 57 mm2 Sep 1931 | 181 mm1979 · driest 33 mm in 1959 | 96 |
| October | 17.2°C9 Oct 1955 | -3.3°C27 Oct 1948 | 89 mm21 Oct 1937 | 250 mm1987 · driest 29 mm in 1946 | 97 |
| November | 14.0°C10 Nov 2022 | -5.7°C17 Nov 1962 | 90 mm24 Nov 1934 | 238 mm1973 · driest 1 mm in 1931 | 97 |
| December | 12.8°C9 Dec 2013 | -8.2°C29 Dec 1961 | 91 mm5 Dec 1934 | 274 mm1999 · driest 1 mm in 1937 | 97 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 6 | 5 |
| February | 0 | 7 | 4 |
| March | 0 | 6 | 3 |
| April | 0 | 3 | 1 |
| May | 0 | <1 | 1 |
| June | 0 | 0 | 2 |
| July | 0 | 0 | 2 |
| August | 0 | 0 | 3 |
| September | 0 | 0 | 3 |
| October | 0 | <1 | 4 |
| November | 0 | 2 | 4 |
| December | 0 | 6 | 5 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 77% | 13% | 92% | 4.1–7.2°C |
| February | 0% | 69% | 11% | 85% | 3.8–7.0°C |
| March | 0% | 65% | 9% | 82% | 4.8–8.0°C |
| April | 0% | 56% | 5% | 72% | 7.2–9.2°C |
| May | <1% | 44% | 5% | 57% | 9.4–11.5°C |
| June | <1% | 46% | 6% | 63% | 11.6–13.9°C |
| July | <1% | 47% | 6% | 63% | 13.3–15.5°C |
| August | <1% | 47% | 8% | 67% | 13.3–15.5°C |
| September | 0% | 62% | 11% | 83% | 11.8–13.9°C |
| October | 0% | 69% | 13% | 88% | 9.2–11.4°C |
| November | 0% | 76% | 15% | 93% | 6.7–9.1°C |
| December | 0% | 78% | 15% | 94% | 4.9–7.9°C |
A dry day reaching 20°C records under 1 mm of rain. A wet day records at least 1 mm, while a heavy-rain day records at least 10 mm. The weekly figure is the share of seven-day periods containing three or more wet days. The final column shows the middle 80% of average daytime highs recorded for that month in individual years; a wider range means conditions have varied more from one year to another.
The evidence behind this page
Where these figures
come from.
- Place identity
- GeoNames 2638439
- NOAA station
- UK000003005 · LERWICK
- Station distance
- 5.2 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 30 usable years
- Daylight
- Calculated from latitude 60.14°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 6 km from the place centre. A sheltered bay can run warmer than the open sea it is measured from.
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Scalloway is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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