County Sligo Weather Forecast
County Sligo weather: 69°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
County Sligo weather in December
Weather map for County Sligo
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Climate in County Sligo 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° | 36° | 4,9 in | ★★☆☆☆ |
| February | 47° | 39° | 5,4 in | ★★☆☆☆ |
| March | 51° | 39° | 5,0 in | ★★★☆☆ |
| April | 54° | 42° | 5,5 in | ★★★☆☆ |
| May | 59° | 47° | 4,2 in | ★★★★☆ |
| June | 60° | 50° | 6,7 in | ★★★☆☆ |
| July | 64° | 54° | 4,5 in | ★★★★☆ |
| August | 64° | 53° | 5,2 in | ★★★★☆ |
| September | 60° | 50° | 5,5 in | ★★★☆☆ |
| October | 55° | 47° | 6,1 in | ★★★☆☆ |
| November | 49° | 42° | 5,7 in | ★★☆☆☆ |
| December | 47° | 40° | 6,9 in | ★★☆☆☆ |
Climate type: Temperate. Source: Open-Meteo archive (ERA5).
Best time to visit County Sligo
Go in May, 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 53°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 Sligo compares with nearby places
Annual averages, and the difference against County Sligo.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| County Leitrim | 22 mi | 49°F | about the same | 62 in |
| County Donegal | 30 mi | 50°F | about the same | 75 in |
| County Roscommon | 37 mi | 50°F | about the same | 47 in |
| County Mayo | 47 mi | 51°F | +33°F warmer | 56 in |
| County Longford | 47 mi | 50°F | about the same | 46 in |
See the County Sligo forecast by time range
County Sligo weather - more answers
Explore County Sligo
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Frequently asked questions
Where is County Sligo?
County Sligo is a county in Ireland. Its coordinates are 54.2766, -8.4761. It lies in Europe.
What is the weather like in County Sligo right now?
It is currently 69°F (20°C) with overcast. Humidity is 54% and wind is 9 mph.
When is the best time to visit County Sligo?
May, July and August offer the most comfortable conditions in County Sligo, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is County Sligo in?
County Sligo observes Europe/Dublin (UTC+01:00). The local time is 11:00 PM.
How many people live in County Sligo?
County Sligo has a population of approximately 70.000.
What is the nearest airport to County Sligo?
The closest airports are Dublin Airport (DUB), 108 mi away.
What are the top things to do in County Sligo?
Popular options include Snowdonia National Park, Lake District National Park, Isle of Skye, Edinburgh Castle and Old and New Towns of Edinburgh.
What places are in County Sligo?
County Sligo covers 1 places in this atlas, including Sligo.
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 11:00 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
