July
Other strong months: August and June
64/100 weather score
United Kingdom · 1991–2020
Best time to visit
Larne
For Larne, July has the most comfortable weather in our climate comparison. Typical daytime highs are 19.2°C, nights average 11.8°C, and rainfall totals about 77 mm. Figures use measured 1991–2020 normals from the nearest eligible NOAA station.
Best all-round monthJuly
Typical daytime high19.2°C
Typical night-time low11.8°C
July rainfall77 mm
July
Other strong months: August and June
28/100 weather score
June
Other strong months: July and September
76/100 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.
2 months fit your choices for Larne
January has the lowest comfort score at 6 out of 100, compared with July at 64. The main reason is that days reach only 8.1°C, 16° below the 24°C the score treats as ideal.
Quick answers
Planning a trip to Larne?
These answers come from the same measured monthly climate record shown on this page.
When is the best time to visit Larne?
July is the strongest all-round choice in our temperature-and-rainfall comparison, with a typical daytime high of 19.2°C and 77 mm of rain.
What is the hottest month in Larne?
July is hottest in this record, with a typical daytime high of 19.2°C and a night-time low of 11.8°C.
Which month has the least rain?
April has the lowest monthly rainfall total at 64 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 | 8.1°C | 2.5°C | 89 mm | 15.1 | 9.0°C | 7 h 46 | 6 | Strong coverage |
| February | 8.6°C | 2.5°C | 73 mm | 13.3 | 8.1°C | 9 h 35 | 12 | Strong coverage |
| March | 10.3°C | 3.4°C | 73 mm | 13.4 | 7.7°C | 11 h 38 | 19 | Strong coverage |
| April | 12.6°C | 5°C | 64 mm | 11.6 | 8.2°C | 14 h | 32 | Strong coverage |
| May | 15.4°C | 7.2°C | 68 mm | 12.3 | 9.2°C | 16 h 04 | 45 | Strong coverage |
| June | 17.6°C | 10°C | 74 mm | 11.5 | 11.0°C | 17 h 18 | 57 | Strong coverage |
| July | 19.2°C | 11.8°C | 77 mm | 12.4 | 12.4°C | 16 h 48 | 64 | Strong coverage |
| August | 18.9°C | 11.6°C | 86 mm | 13.6 | 13.4°C | 14 h 57 | 60 | Strong coverage |
| September | 16.9°C | 10°C | 75 mm | 11.5 | 13.9°C | 12 h 38 | 54 | Strong coverage |
| October | 13.6°C | 7.4°C | 98 mm | 13.5 | 13.5°C | 10 h 22 | 34 | Strong coverage |
| November | 10.6°C | 4.7°C | 106 mm | 15.8 | 12.2°C | 8 h 19 | 16 | Strong coverage |
| December | 8.4°C | 2.9°C | 95 mm | 14.5 | 10.5°C | 7 h 14 | 8 | Strong coverage |
What has changed
Recent daytime highs are
1.1°C warmer in Larne.
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
+0.9
Feb
+1.8
Mar
+1.4
Apr
+1.3
May
+1.5
Jun
+0.9
Jul
+0.9
Aug
+0.7
Sep
+0.9
Oct
+0.7
Nov
+1.2
Dec
+1.0
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 14.7°C25 Jan 2003 | -9.9°C12 Jan 1982 | 37 mm19 Jan 1973 | 187 mm2026 · driest 21 mm in 2006 | 67 |
| February | 15.8°C13 Feb 1998 | -6.1°C16 Feb 1969 | 38 mm6 Feb 1963 | 178 mm1966 · driest 4 mm in 1986 | 65 |
| March | 20.1°C27 Mar 2012 | -7.2°C2 Mar 1965 | 51 mm30 Mar 2010 | 147 mm2024 · driest 17 mm in 1961 | 67 |
| April | 21.6°C29 Apr 2025 | -5.6°C29 Apr 1973 | 41 mm15 Apr 1986 | 139 mm1991 · driest 6 mm in 1980 | 67 |
| May | 25.0°C22 May 2010 | -1.7°C2 May 1979 | 52 mm13 May 1993 | 197 mm1993 · driest 6 mm in 1991 | 67 |
| June | 29.0°C27 Jun 2018 | 1.7°C1 Jun 1962 | 52 mm27 Jun 2012 | 222 mm2012 · driest 22 mm in 1992 | 66 |
| July | 29.7°C11 Jul 1983 | 5.6°C10 Jul 1971 | 49 mm4 Jul 1971 | 130 mm2023 · driest 11 mm in 1982 | 66 |
| August | 28.2°C20 Aug 1995 | 4.9°C24 Aug 1986 | 92 mm15 Aug 1970 | 192 mm2008 · driest 6 mm in 1995 | 66 |
| September | 25.8°C7 Sep 2023 | 1.1°C28 Sep 1974 | 80 mm24 Sep 2012 | 175 mm1999 · driest 2 mm in 2014 | 66 |
| October | 20.6°C8 Oct 1969 | -0.9°C30 Oct 1988 | 56 mm14 Oct 1976 | 212 mm2023 · driest 25 mm in 1978 | 65 |
| November | 17.1°C1 Nov 2007 | -3.4°C28 Nov 2010 | 47 mm1 Nov 1968 | 247 mm2002 · driest 33 mm in 1989 | 66 |
| December | 15.0°C6 Dec 2016 | -9.1°C22 Dec 2010 | 46 mm28 Dec 1978 | 273 mm1978 · driest 14 mm in 1971 | 66 |
| Month | Days 25°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 0 | 5 | 2 |
| February | 0 | 5 | 2 |
| March | 0 | 3 | 2 |
| April | 0 | <1 | 2 |
| May | 0 | 0 | 2 |
| June | <1 | 0 | 2 |
| July | <1 | 0 | 2 |
| August | <1 | 0 | 3 |
| September | 0 | 0 | 2 |
| October | 0 | <1 | 3 |
| November | 0 | 1 | 4 |
| December | 0 | 4 | 3 |
| Month | Dry days reaching 20°C | Wet days | Days with heavy rain | Weeks with 3+ wet days | Typical high by year |
|---|---|---|---|---|---|
| January | 0% | 49% | 9% | 67% | 5.9–9.2°C |
| February | 0% | 44% | 7% | 58% | 5.9–9.8°C |
| March | <1% | 44% | 6% | 60% | 7.8–11.6°C |
| April | <1% | 37% | 5% | 51% | 10.3–13.6°C |
| May | 6% | 39% | 4% | 53% | 13.5–16.7°C |
| June | 17% | 37% | 6% | 49% | 15.8–19.0°C |
| July | 24% | 37% | 6% | 52% | 17.3–20.7°C |
| August | 20% | 42% | 8% | 57% | 17.2–20.4°C |
| September | 5% | 41% | 8% | 58% | 15.3–17.8°C |
| October | <1% | 44% | 10% | 63% | 12.2–14.8°C |
| November | 0% | 48% | 10% | 68% | 8.6–11.6°C |
| December | 0% | 46% | 8% | 64% | 6.5–9.9°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 2644849
- NOAA station
- UKE00105877 · STORMONT CASTLE
- Station distance
- 27.5 km from the place centre
- Climate period
- 1991–2020
- Minimum month coverage
- 28 usable years
- Daylight
- Calculated from latitude 54.85°, mid-month, sunrise to sunset including refraction. Not a station measurement.
- Sea temperature
- NOAA OISST v2.1 1991–2020 monthly climatology, nearest open water 5 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 Larne 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