Donegal Weather in March
In Donegal, March brings low daytime temperatures around 10°C (50°F), with nights cooling to 4°C (39°F). Expect quite a bit of rainfall this month.
Rainfall in Donegal in March
Records from the past 30 years suggest around 23 days of rain, with 105 mm (4.1 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Donegal in March
In March, expect low temperatures in Donegal, with highs of 10°C (50°F) and lows of 4°C (39°F) at night. Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Donegal in March
The city usually sees around 100 hours of sunlight, indicating a moderately sunny period.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for Donegal.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Donegal's climate page.
Donegal Temperature in March
Min Temperature
4°C (39°F)
Max Temperature
10°C (50°F)
Chance of Rain
76%
Precipitation
105 mm (4.1 in)
Rainy days
23 days
Sunshine
100 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Donegal typically stay consistent throughout March, with daily highs averaging around 10°C (50°F). Nights are cold, with lows typically ranging from 2°C (36°F) to 5°C (41°F).
Average temperatures in March
Historical weather for Donegal in March
Browse day-by-day weather records for Donegal spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Donegal historical weather extremes in March
Based on 37 years of weather observations in Donegal between 1989 and 2026, these are the recorded extremes.
- Donegal recorded its highest March temperature of 20°C (68°F) on March 25, 2012.
- The lowest daytime temperature in March was 0°C (32°F), recorded on March 1, 2018.
- Donegal registered its coldest March night on March 9, 2010, with temperatures dropping to -6°C (21°F).
Best Places in Ireland in March
Find out more about the weather in Ireland and which places have the best travel conditions in this month. See all of Ireland in March →
perfect weather
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tolerable
unpleasant
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What to Wear in Donegal in March
The weather can be unpredictable in March, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Donegal in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Ireland, check out our Donegal's climate page.
See the full Donegal climate overview or explore weather in Ireland.
