County Louth Weather Forecast
County Louth weather: 53°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
County Louth weather in September
Weather map for County Louth
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in County Louth month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 45° | 36° | 3,7 in | ★★☆☆☆ |
| February | 49° | 40° | 3,6 in | ★★★☆☆ |
| March | 52° | 40° | 3,1 in | ★★★☆☆ |
| April | 55° | 42° | 3,6 in | ★★★☆☆ |
| May | 61° | 48° | 2,3 in | ★★★★☆ |
| June | 64° | 51° | 4,1 in | ★★★★☆ |
| July | 68° | 55° | 2,8 in | ★★★★☆ |
| August | 67° | 54° | 3,4 in | ★★★★☆ |
| September | 62° | 50° | 4,1 in | ★★★★☆ |
| October | 57° | 47° | 2,9 in | ★★★★☆ |
| November | 51° | 41° | 3,7 in | ★★★☆☆ |
| December | 49° | 41° | 3,4 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit County Louth
Go in May, June, July and August. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What to pack, what to skip
- A warm mid-layer and gloves for early mornings and evenings
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
How County Louth compares with nearby places
Annual averages, and the difference against County Louth.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| County Meath | 23 mi | 51°F | about the same | 39 in |
| County Monaghan | 30 mi | 50°F | 33°F cooler | 40 in |
| County Cavan | 36 mi | 50°F | 33°F cooler | 42 in |
| Dublin Airport | 36 mi | 52°F | about the same | 38 in |
| County Dublin | 41 mi | 53°F | +33°F warmer | 40 in |
See the County Louth forecast by time range
County Louth weather - more answers
Explore County Louth
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Frequently asked questions
Where is County Louth?
County Louth is a county in Ireland. Its coordinates are 53.9252, -6.4889. It lies in Europe.
What is the weather like in County Louth right now?
It is currently 53°F (12°C) with overcast. Humidity is 89% and wind is 13 mph.
When is the best time to visit County Louth?
May, June, July and August offer the most comfortable conditions in County Louth, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Louth in?
County Louth observes Europe/Dublin (UTC+00:00). The local time is 8:51 PM.
How many people live in County Louth?
County Louth has a population of approximately 139.000.
What is the nearest airport to County Louth?
The closest airports are Dublin Airport (DUB), 36 mi away and London Heathrow Airport (LHR), 304 mi away.
What are the top things to do in County Louth?
Popular options include Snowdonia National Park, Lake District National Park, Edinburgh Castle, Old and New Towns of Edinburgh, Isle of Skye and Loch Ness.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (ie-counties) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated October 28, 2026 at 8:51 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
