July
Other strong months: August and June
84/100 weather score
United Kingdom · 1991–2020
Best time to visit
London
For London, July has the most comfortable weather in our climate comparison. Typical daytime highs are 22.6°C, nights average 13.2°C, and rainfall totals about 52 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJuly
Typical daytime high22.6°C
Typical night-time low13.2°C
July rainfall52 mm
June
Other strong months: September and May
86/100 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.
4 months fit your choices for London
January has the lowest comfort score at 8 out of 100, compared with July at 84. The main reason is that days reach only 7.5°C, 16° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to London?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit London?
July is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 22.6°C and 52 mm of rain.
What is the hottest month in London?
July is hottest in this record, with a typical daytime high of 22.6°C and a night-time low of 13.2°C.
Which month has the least rain?
March has the lowest monthly rainfall total at 45 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 7.5°C | 2.1°C | 74 mm | 13 | 8 h 18 | 8 | Good coverage |
| February | 8.1°C | 2.1°C | 51 mm | 10.3 | 9 h 52 | 15 | Good coverage |
| March | 11°C | 3.6°C | 45 mm | 9 | 11 h 41 | 30 | Good coverage |
| April | 14.1°C | 5.4°C | 54 mm | 10.3 | 13 h 46 | 41 | Good coverage |
| May | 17.3°C | 8.3°C | 54 mm | 8.9 | 15 h 34 | 58 | Good coverage |
| June | 20.3°C | 11°C | 58 mm | 9.2 | 16 h 36 | 72 | Good coverage |
| July | 22.6°C | 13.2°C | 52 mm | 8.8 | 16 h 12 | 84 | Good coverage |
| August | 22°C | 13.3°C | 68 mm | 9.4 | 14 h 36 | 80 | Good coverage |
| September | 19°C | 11.1°C | 62 mm | 9.1 | 12 h 34 | 67 | Good coverage |
| October | 14.7°C | 8.3°C | 80 mm | 11.1 | 10 h 34 | 44 | Good coverage |
| November | 10.6°C | 4.9°C | 76 mm | 11.9 | 8 h 46 | 24 | Good coverage |
| December | 7.9°C | 2.4°C | 69 mm | 12.1 | 7 h 51 | 11 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 15.7°C26 Jan 2003 | -11.9°C13 Jan 1987 | 26 mm2 Jan 1986 | 195 mm2014 · driest 16 mm in 1992 | 57 |
| February | 18.3°C12 Feb 1998 | -8.5°C7 Feb 1991 | 24 mm3 Feb 2002 | 108 mm2010 · driest 8 mm in 1998 | 57 |
| March | 22.8°C28 Mar 1965 | -7.2°C3 Mar 1965 | 25 mm13 Mar 1979 | 114 mm2001 · driest 4 mm in 1961 | 57 |
| April | 26.3°C22 Apr 2011 | -3.2°C9 Apr 1970 | 37 mm28 Apr 2012 | 147 mm2012 · driest 2 mm in 2011 | 56 |
| May | 29.8°C27 May 2005 | -0.6°C4 May 1979 | 51 mm1 May 2010 | 124 mm1979 · driest 4 mm in 1989 | 57 |
| June | 34.2°C30 Jun 2015 | 1.7°C1 Jun 1962 | 41 mm10 Jun 1971 | 142 mm2012 · driest 8 mm in 2015 | 57 |
| July | 34.4°C19 Jul 2006 | 4.2°C3 Jul 1974 | 44 mm20 Jul 1992 | 105 mm2012 · driest 10 mm in 1999 | 57 |
| August | 37.4°C9 Aug 2003 | 4.5°C20 Aug 1974 | 80 mm16 Aug 1977 | 161 mm1977 · driest 2 mm in 1995 | 56 |
| September | 29.4°C4 Sep 1973 | 2.4°C22 Sep 1979 | 60 mm22 Sep 1992 | 152 mm1974 · driest 8 mm in 1969 | 56 |
| October | 27.4°C1 Oct 2011 | -2.4°C31 Oct 1997 | 49 mm9 Oct 1987 | 177 mm1987 · driest 7 mm in 1978 | 56 |
| November | 17.9°C5 Nov 2003 | -5.6°C28 Nov 2010 | 37 mm14 Nov 1970 | 167 mm2002 · driest 15 mm in 1978 | 55 |
| December | 15.6°C18 Dec 2015 | -8.4°C13 Dec 1981 | 33 mm19 Dec 1995 | 146 mm1978 · driest 15 mm in 1988 | 56 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 8 | 2 |
| February | 0 | 0 | 8 | 1 |
| March | 0 | 0 | 4 | 1 |
| April | <1 | 0 | 2 | 1 |
| May | 1 | 0 | 0 | 2 |
| June | 3 | <1 | 0 | 2 |
| July | 8 | 1 | 0 | 1 |
| August | 5 | <1 | 0 | 2 |
| September | 2 | 0 | 0 | 2 |
| October | <1 | 0 | <1 | 2 |
| November | 0 | 0 | 2 | 2 |
| December | 0 | 0 | 8 | 1 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 41% | 4% | 53% | 5.0–9.2°C |
| February | 0% | 35% | 3% | 43% | 4.5–9.8°C |
| March | <1% | 32% | 3% | 44% | 7.3–12.7°C |
| April | 4% | 34% | 4% | 44% | 11.4–15.0°C |
| May | 18% | 31% | 5% | 39% | 14.9–18.6°C |
| June | 38% | 30% | 5% | 35% | 17.7–21.7°C |
| July | 55% | 27% | 4% | 34% | 19.5–24.8°C |
| August | 51% | 29% | 6% | 37% | 19.3–23.5°C |
| September | 26% | 30% | 6% | 39% | 16.9–20.3°C |
| October | 3% | 34% | 7% | 47% | 12.8–16.6°C |
| November | 0% | 39% | 6% | 52% | 8.2–11.6°C |
| December | 0% | 37% | 5% | 50% | 5.0–9.1°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 2643743
- NOAA station
- UKE00105915 · HAMPSTEAD
- Station distance
- 21.9 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 23 usable years
- Daylight
- Calculated from latitude 51.51°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- 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 London 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.
How travel partnerships will work