Donegal weather live forecast

Today's maximum temperature in Donegal is expected to be 14°C. Select a day from the live weather forecast for Donegal, Ireland for more weather parameters.

Saturday
19th Sep
14

11

3

2
Sunday
20th Sep
15

11

2

2
Monday
21st Sep
20

14

4

3
Tuesday
22nd Sep
16

13

0

0
Wednesday
23rd Sep
15

10

5

3

5-day weather forecast updated at 04:00 on Saturday 19th September 2026 GMT

More about Donegal

Donegal by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Ireland

Fred Olsen: Top cruise offers for 2026/2027

Sale

Explore latest offers on Fred Olsen Cruises in 2026/2027
Find last minute deals or early bird discounts
Filter offers by price, destination, ship & departure point

Go to Fred Olsen deal >>

View all Fred Olsen offers

Cruise deal finder

Destination

The 5-day weather forecast for Ireland (Donegal) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Donegal weather forecast by day

Below are the detailed weather forecasts for Donegal for the next 5 days.

Donegal weather for Saturday 19th September 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 14°C, maximum UV of 2 (Low) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a fresh breeze of 38 kph from the west.

14
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
2
UV index (Low)
28
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
38
kph wind from W

Donegal weather for Sunday 20th September 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 15°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 69% chance of some rain and a moderate breeze of 27 kph from the west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
2
UV index (Low)
69
% chance of some rain
<2
mm of rainfall expected
15
°C wind chill
27
kph wind from W

Donegal weather for Monday 21st September 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 20°C, maximum UV of 3 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 17 kph from the south-west.

20
°C maximum temperature
14
°C minimum temperature
mostly cloudy with light rain
4
hours of sunshine
3
UV index (Moderate)
18
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
17
kph wind from SW

Donegal weather for Tuesday 22nd September 2026

Expect mostly cloudy with light rain in Donegal, Ireland with a maximum temperature of 16°C and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 76% chance of some rain and a light breeze of 9 kph from the south.

16
°C maximum temperature
13
°C minimum temperature
mostly cloudy with light rain
0
hours of sunshine
0
UV index (None)
76
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
9
kph wind from S

Donegal weather for Wednesday 23rd September 2026

Expect sunshine and showers in Donegal, Ireland with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 41% chance of some rain and a gentle breeze of 18 kph from the north-west.