County Cavan Weather Forecast
County Cavan weather: 50°F, partly cloudy. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
County Cavan weather in May
Weather map for County Cavan
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in County Cavan 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° | 3,5 in | ★★☆☆☆ |
| February | 48° | 39° | 3,7 in | ★★★☆☆ |
| March | 51° | 39° | 3,1 in | ★★★☆☆ |
| April | 55° | 42° | 4,0 in | ★★★☆☆ |
| May | 61° | 47° | 3,0 in | ★★★★☆ |
| June | 63° | 51° | 4,2 in | ★★★★☆ |
| July | 67° | 54° | 2,6 in | ★★★★☆ |
| August | 66° | 54° | 2,7 in | ★★★★☆ |
| September | 62° | 50° | 4,2 in | ★★★★☆ |
| October | 56° | 47° | 4,6 in | ★★★☆☆ |
| November | 49° | 41° | 3,5 in | ★★★☆☆ |
| December | 48° | 40° | 3,7 in | ★★★☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit County Cavan
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 56°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 Cavan compares with nearby places
Annual averages, and the difference against County Cavan.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| County Monaghan | 24 mi | 50°F | about the same | 41 in |
| County Longford | 25 mi | 50°F | about the same | 46 in |
| County Leitrim | 28 mi | 49°F | 33°F cooler | 62 in |
| County Westmeath | 32 mi | 50°F | about the same | 42 in |
| County Louth | 36 mi | 51°F | +33°F warmer | 42 in |
See the County Cavan forecast by time range
County Cavan weather - more answers
Explore County Cavan
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Frequently asked questions
Where is County Cavan?
County Cavan is a county in Ireland. Its coordinates are 53.9908, -7.3606. It lies in Europe.
What is the weather like in County Cavan right now?
It is currently 50°F (10°C) with partly cloudy. Humidity is 88% and wind is 1 mph.
When is the best time to visit County Cavan?
July and August offer the most comfortable conditions in County Cavan, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Cavan in?
County Cavan observes Europe/Dublin (UTC+01:00). The local time is 6:34 AM.
How many people live in County Cavan?
County Cavan has a population of approximately 81.000.
What is the nearest airport to County Cavan?
The closest airports are Dublin Airport (DUB), 59 mi away.
What are the top things to do in County Cavan?
Popular options include Snowdonia National Park, Lake District National Park, Edinburgh Castle, Old and New Towns of Edinburgh and Isle of Skye.
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 23, 2026 at 6:34 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
