County Roscommon Weather Forecast
County Roscommon weather: 52°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
County Roscommon weather in May
Weather map for County Roscommon
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in County Roscommon 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° | 3,7 in | ★★☆☆☆ |
| February | 48° | 39° | 4,1 in | ★★★☆☆ |
| March | 51° | 39° | 3,7 in | ★★★☆☆ |
| April | 55° | 41° | 4,3 in | ★★★☆☆ |
| May | 61° | 47° | 2,9 in | ★★★★☆ |
| June | 63° | 50° | 4,4 in | ★★★★☆ |
| July | 66° | 53° | 2,6 in | ★★★★☆ |
| August | 65° | 53° | 3,4 in | ★★★★☆ |
| September | 61° | 50° | 4,0 in | ★★★★☆ |
| October | 56° | 47° | 4,9 in | ★★★☆☆ |
| November | 50° | 41° | 4,2 in | ★★★☆☆ |
| December | 48° | 40° | 4,7 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit County Roscommon
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 51°F, so mornings feel nothing like afternoons
- A packable rain shell - 7 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 Roscommon compares with nearby places
Annual averages, and the difference against County Roscommon.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| County Longford | 20 mi | 50°F | about the same | 46 in |
| County Leitrim | 27 mi | 49°F | 33°F cooler | 62 in |
| County Westmeath | 36 mi | 50°F | about the same | 42 in |
| County Sligo | 37 mi | 50°F | about the same | 66 in |
| Sligo | 37 mi | 50°F | about the same | 66 in |
See the County Roscommon forecast by time range
County Roscommon weather - more answers
Explore County Roscommon
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is County Roscommon?
County Roscommon is a county in Ireland. Its coordinates are 53.7593, -8.2682. It lies in Europe.
What is the weather like in County Roscommon right now?
It is currently 52°F (11°C) with overcast. Humidity is 89% and wind is 5 mph.
When is the best time to visit County Roscommon?
July and August offer the most comfortable conditions in County Roscommon, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Roscommon in?
County Roscommon observes Europe/Dublin (UTC+01:00). The local time is 6:13 AM.
How many people live in County Roscommon?
County Roscommon has a population of approximately 70.000.
What is the nearest airport to County Roscommon?
The closest airports are Dublin Airport (DUB), 85 mi away.
What are the top things to do in County Roscommon?
Popular options include Snowdonia National Park and Lake District National Park.
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 25, 2026 at 6:13 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
