Larne weather
Temperature, rain and wind in Larne (Northern Ireland, United Kingdom), a city of about 18,421 people: how it is right now, hour by hour into tomorrow, the next 7 days and what each month of the year is like.
This page is not in Google’s index: the city is small, or it gets the same forecast as a large city next to it.
Right now
Friday 16 October, 09:00 (Europe/London)
7 °C
Clear sky
Feels like
4 °C
Humidity
88%
Wind
23 km/h
W · Beaufort 4
Dew point
6 °C
Cloud cover
2%
Pressure
1,021 hPa
Hour by hour
Next 24 hours, in the city’s local time.
| Time | Conditions | Temperature | Rain | Wind |
|---|---|---|---|---|
| 08:00 | Clear sky | 7 °C | 0.0 mm | 23 km/h |
| 09:00 | Clear sky | 7 °C | 0.0 mm | 23 km/h |
| 10:00 | Clear sky | 9 °C | 0.0 mm | 24 km/h |
| 11:00 | Clear sky | 10 °C | 0.0 mm | 24 km/h |
| 12:00 | Fair | 10 °C | 0.0 mm | 27 km/h |
| 13:00 | Fair | 11 °C | 0.0 mm | 26 km/h |
| 14:00 | Fair | 11 °C | 0.0 mm | 28 km/h |
| 15:00 | Clear sky | 11 °C | 0.0 mm | 31 km/h |
| 16:00 | Fair | 11 °C | 0.0 mm | 33 km/h |
| 17:00 | Clear sky | 11 °C | 0.0 mm | 34 km/h |
| 18:00 | Clear sky | 10 °C | 0.0 mm | 33 km/h |
| 19:00 | Clear sky | 10 °C | 0.0 mm | 31 km/h |
| 20:00 | Clear sky | 10 °C | 0.0 mm | 32 km/h |
| 21:00 | Fair | 9 °C | 0.0 mm | 33 km/h |
| 22:00 | Fair | 9 °C | 0.0 mm | 32 km/h |
| 23:00 | Fair | 9 °C | 0.0 mm | 30 km/h |
| 00:00 | Partly cloudy | 9 °C | 0.0 mm | 29 km/h |
| 01:00 | Partly cloudy | 9 °C | 0.0 mm | 30 km/h |
| 02:00 | Partly cloudy | 9 °C | 0.0 mm | 27 km/h |
| 03:00 | Partly cloudy | 9 °C | 0.0 mm | 26 km/h |
| 04:00 | Partly cloudy | 9 °C | 0.0 mm | 26 km/h |
| 05:00 | Partly cloudy | 9 °C | 0.0 mm | 25 km/h |
| 06:00 | Partly cloudy | 9 °C | 0.0 mm | 24 km/h |
| 07:00 | Fair | 9 °C | 0.0 mm | 22 km/h |
Next 7 days
| Day | Conditions | Low | High | Rain outlook |
|---|---|---|---|---|
| Fri 16/10 | Fair | 7 °C | 11 °C | no rain expected · 0.0 mm |
| Sat 17/10 | Fair | 5 °C | 10 °C | no rain expected · 0.0 mm |
| Sun 18/10 | Fair | 5 °C | 11 °C | no rain expected · 0.0 mm |
| Tue 20/10 | Partly cloudy | 10 °C | 12 °C | rain possible · 3.2 mm |
| Wed 21/10 | Rain | 6 °C | 12 °C | rain likely · 6.1 mm |
| Thu 22/10 | Light rain showers | 6 °C | 12 °C | rain likely · 1.2 mm |
| Fri 23/10 | Heavy rain | 8 °C | 13 °C | rain likely · 28 mm |
This column is our own reading: the global model does not publish a probability of precipitation for this region, so we classify the day from the forecast symbol and the total in millimetres. It is not an official probability figure.
Europe/London
What each number means
- Rain (mm)
- 1 millimetre of rain is 1 litre of water per square metre. Up to 2 mm in a day is drizzle; from 10 mm it is proper rain; more than 50 mm in a few hours is the amount that floods streets.
- Humidity
- Relative humidity is how much water vapour the air holds compared with the most it can hold at that temperature. Above 80% sweat evaporates slowly and heat feels worse; below 30% your throat and eyes dry out.
- Dew point
- The dew point is the temperature at which the air would start to condense. The closer it is to the air temperature, the muggier it feels. Above 20 °C the air already feels heavy.
- Feels like
- "Feels like" combines temperature, wind and humidity: strong wind carries heat away from the body, so it feels colder than the thermometer; high humidity in the heat makes it feel warmer.
- Wind
- Wind is given as a speed and the direction it blows from. Up to 20 km/h you barely notice it; at 40 km/h it moves branches and parasols; above 60 km/h it brings down trees and roof tiles.
- Cloud cover
- Cloud cover as a percentage is how much of the sky is covered. Up to 20% is a clear sky; above 80% the sun barely gets through.
- Chance of rain
- The model does not publish a probability of precipitation for this region. This column is our own reading: the global model does not publish a probability of precipitation for this region, so we classify the day from the forecast symbol and the total in millimetres. It is not an official probability figure.
Month-by-month climate
In October, Larne averages 12 °C and about 124 mm of rain over the month, on the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology.
Warmest month
August
Coldest month
February
Wettest month
October
Driest month
April
| Month | Mean temperature | Rain | Mean humidity |
|---|---|---|---|
| January | 6 °C | 110 mm | 88% |
| February | 6 °C | 86 mm | 87% |
| March | 7 °C | 80 mm | 86% |
| April | 8 °C | 62 mm | 85% |
| May | 10 °C | 73 mm | 84% |
| June | 13 °C | 84 mm | 85% |
| July | 14 °C | 93 mm | 86% |
| August | 14 °C | 104 mm | 87% |
| September | 14 °C | 87 mm | 86% |
| October | 12 °C | 124 mm | 86% |
| November | 9 °C | 120 mm | 87% |
| December | 7 °C | 114 mm | 87% |
Frequently asked questions
- Will it rain tomorrow in Larne?
- no rain expected. Rain: 0.0 mm. Low 5 °C, High 10 °C.
- What is the temperature in Larne right now?
- 7 °C, clear sky. Feels like: 4 °C. Humidity: 88%.
- What will the weather be like at the weekend in Larne?
- Sat 17/10: fair, 5 °C / 10 °C, no rain expected. Sun 18/10: fair, 5 °C / 11 °C, no rain expected.
- Which is the wettest month in Larne?
- October — ~124 mm (25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025), NASA POWER).
- How far ahead does this Larne forecast go?
- This page shows 7 days. The model run used here is from 16/10/2026, 07:18 UTC, and the page fetches a new one every 30 minutes.
Nearby cities
Forecasts for places near Larne:
- Carrickfergus 15 km
- Newtownabbey 22 km
- Bangor 23 km
- Belfast 29 km
- Antrim 29 km
- Ballymena 29 km
- Newtownards 30 km
- Castlereagh 31 km
How to read this page
How to read the min and the max
The week’s high (13 °C) arrives in the afternoon, about two hours after solar noon; the low (5 °C) just before sunrise. Both are air temperature in the shade, two metres above ground — in direct sun or over asphalt a thermometer reads higher.
Where this number comes from
The Larne forecast comes from MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS, run of 16/10/2026, 07:18 UTC. The month-by-month climate comes from NASA POWER, climatology of 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). Both are credited in full at the foot of this page.
What a forecast cannot promise
Out to two days accuracy is high; by day seven the trend matters more than the exact figure. For Larne the model publishes no rain probability, so the expectation column is our reading.
Severe weather warnings
This page is informational. For official warnings of storms, gales or flooding affecting Larne, go to your national weather service through the World Meteorological Organization warning portal.
Understanding the weather and climate of Larne
Is this week in Larne above or below the October normal?
The average of the next 7 days in Larne works out at 9 °C, against a normal of 12 °C for October over 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025). That is 2 °C below typical, a modest gap and well within week-to-week variation.
Within the week the highest maximum lands on Fri 23/10 (13 °C) and the lowest minimum on Sun 18/10 (5 °C). Forecast rain adds up to 38 mm, roughly 31% of everything Larne gets in an average October (124 mm). The wettest day is Fri 23/10, with 28 mm.
When is the wettest and the driest month in Larne?
On the 25-year Meteorological and Solar Monthly & Annual Climatologies (January 2001 - December 2025) climatology, the wettest month in Larne is October, at about 124 mm, and the driest is April, at 62 mm. The two extremes differ by only 2 times, which means rain is spread fairly evenly across the year in Larne. For October, the month you are reading this in, the average is 124 mm.
What does the dew point say about how Larne feels?
Right now in Larne the air is at 7 °C with a dew point of 6 °C and relative humidity of 88%. The two sit within a few tenths of each other: the air is all but saturated, which favours fog, dew on the car and laundry that will not dry.
What is the climate of Larne like through the year?
The warmest month in Larne is August (14 °C on average) and the coldest is February (6 °C), a swing of about 8 °C around an annual mean of 10 °C. With a swing that size the seasons show up in the wardrobe, but none of them is severe.
Because Larne lies in the northern hemisphere, at 54.85° north, summer falls in June, July and August, in the middle of the calendar.
How far is Larne from Belfast?
The nearest large city to Larne is Belfast, about 29 km away in a straight line, to the south, with 348,005 inhabitants. In that band the temperature of the two rarely differs by more than a degree or two, but a summer downpour can hit one and miss the other: heat showers are only a few kilometres wide. Being larger, Belfast shows up in more searches, and plenty of people end up reading its forecast assuming it covers Larne.
Words on this page
Apparent temperature
The temperature the body actually feels, rather than the one on the thermometer. It combines air temperature with wind, which carries heat away faster, and humidity, which slows the evaporation of sweat. That is why 30 °C in dry air with a breeze is easier than 28 °C in still, muggy air.
Dew point
The temperature air would have to cool to, at constant pressure and moisture, for water to start condensing. The closer the dew point sits to the air temperature, the less room the vapour has and the muggier the day feels.
Millimetre of rain
The depth of water rain would leave on a flat surface with no run-off. One millimetre is one litre per square metre, no matter how large the area measured is.
Standard definition by World Meteorological Organization (WMO) · Millimetre of rain
Relative humidity
How much water vapour the air holds compared with the most it could hold at that temperature, as a percentage. Because that ceiling rises with heat, the same amount of vapour reads high at dawn and low in the afternoon.
Beaufort scale
A 0-to-12 scale that describes wind strength by what it visibly does: smoke rising straight up at 0, leaves moving at 3, large branches bending at 6, roof damage at 9, devastation at 12. It began at sea in the nineteenth century and now has an official equivalence in metres per second.
Standard definition by World Meteorological Organization (WMO) · Beaufort scale
Forecast model
A program that solves the equations of the atmosphere on a grid of points and steps forward in time from the state observed now. Your city forecast is the model value at the nearest grid point, which is why two neighbouring towns get almost the same numbers.
Standard definition by MET Norway (Meteorologisk institutt) · Forecast model
Model run
The time the model was executed with the latest observations. Every forecast belongs to a run, and runs age: one from six hours ago knows nothing about the shower that started afterwards. It is the first thing to check when two sources disagree.
Standard definition by MET Norway (Meteorologisk institutt) · Model run
Climate normal
The average of a climate element — temperature, rainfall, humidity — computed over a long, standardised period, usually thirty years. It does not predict anything: it says what is typical for that place in that month, and gives you a ruler for calling a week warm or wet.
Standard definition by World Meteorological Organization (WMO) · Climate normal
Source, model and licence
- Model
- MET Norway, a partir do ECMWF HRES e, na área nórdica, do MEPS
- Model run
- 16/10/2026, 07:18 UTC
- Source
- MET Norway (Meteorologisk institutt) — Locationforecast 2.0 — Based on data from MET Norway. Licence: CC BY 4.0 / NLOD 2.0.
- Month-by-month climate
- NASA POWER — Climatology (MERRA-2, 2001–2020) — The data was obtained from National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project — Climatology API v2. Dados públicos da NASA, citação obrigatória.
- Cities, coordinates and population
- Dados de cidades: GeoNames (CC BY 4.0)
The page fetches fresh data every 30 minutes. Informational content. For severe weather warnings, follow your country’s official weather service and civil protection authority.