County Monaghan Weather Forecast
County Monaghan weather: 44°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
County Monaghan weather in May
Weather map for County Monaghan
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in County Monaghan 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 | 44° | 35° | 3,3 in | ★★☆☆☆ |
| February | 47° | 38° | 3,2 in | ★★★☆☆ |
| March | 51° | 39° | 3,1 in | ★★★☆☆ |
| April | 55° | 41° | 3,5 in | ★★★☆☆ |
| May | 61° | 47° | 2,6 in | ★★★★☆ |
| June | 63° | 50° | 4,5 in | ★★★★☆ |
| July | 67° | 54° | 2,5 in | ★★★★☆ |
| August | 66° | 53° | 2,7 in | ★★★★☆ |
| September | 61° | 49° | 4,1 in | ★★★★☆ |
| October | 56° | 47° | 4,2 in | ★★★☆☆ |
| November | 49° | 40° | 3,5 in | ★★★☆☆ |
| December | 48° | 40° | 3,7 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit County Monaghan
Go in 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
- Layers - the daily swing is 59°F, so mornings feel nothing like afternoons
- A packable rain shell - 5 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
How County Monaghan compares with nearby places
Annual averages, and the difference against County Monaghan.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| County Cavan | 24 mi | 50°F | about the same | 43 in |
| County Louth | 30 mi | 51°F | +33°F warmer | 42 in |
| Northern Ireland | 42 mi | 50°F | about the same | 42 in |
| County Leitrim | 43 mi | 49°F | 33°F cooler | 62 in |
| County Antrim | 45 mi | 50°F | about the same | 46 in |
See the County Monaghan forecast by time range
County Monaghan weather - more answers
Explore County Monaghan
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Frequently asked questions
Where is County Monaghan?
County Monaghan is a county in Ireland. Its coordinates are 54.2492, -6.9683. It lies in Europe.
What is the weather like in County Monaghan right now?
It is currently 44°F (7°C) with clear. Humidity is 97% and wind is 2 mph.
When is the best time to visit County Monaghan?
July and August offer the most comfortable conditions in County Monaghan, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Monaghan in?
County Monaghan observes Europe/Dublin (UTC+01:00). The local time is 10:34 AM.
How many people live in County Monaghan?
County Monaghan has a population of approximately 65.000.
What is the nearest airport to County Monaghan?
The closest airports are Dublin Airport (DUB), 64 mi away.
What are the top things to do in County Monaghan?
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 August 24, 2026 at 10:34 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
