Sligo Weather Forecast
Sligo weather: 69°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Climate in 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 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.
Recent extremes in Sligo
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Sligo compares with nearby places
Annual averages, and the difference against 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 |
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.
See the Sligo forecast by time range
Sligo weather - more answers
Explore Sligo
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 Sligo?
Sligo is a city in County Sligo. Its coordinates are 54.2766, -8.4761. It lies in Europe.
What is the weather like in 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 Sligo?
May, July and August offer the most comfortable conditions in Sligo, which has a temperate climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Sligo in?
Sligo observes Europe/Dublin (UTC+01:00). The local time is 6:46 PM.
How many people live in Sligo?
Sligo has a population of approximately 20.000.
What is the nearest airport to Sligo?
The closest airports are Dublin Airport (DUB), 108 mi away.
What are the top things to do in Sligo?
Popular options include Snowdonia National Park, Lake District National Park, Isle of Skye, Edinburgh Castle and Old and New Towns of Edinburgh.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-supported) - 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 6:46 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
