Letterkenny Weather in March
In Letterkenny, March brings low daytime temperatures around 11°C (52°F), with nights cooling to 4°C (39°F). Expect quite a bit of rainfall this month.
Rainfall in Letterkenny in March
On average, there are about 22 days with rain during this month, averaging 96 mm (3.8 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Letterkenny in March
In March, Letterkenny gets low temperatures, with highs of 11°C (52°F). Nights cool to around 4°C (39°F). The days stay cool from start to finish. Layering up well will make outdoor time much more comfortable. 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 Letterkenny in March
The area enjoys a balanced 100 hours of sunlight, ensuring it's neither too overcast nor too sunny.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, July, August and September typically offer the best weather for Letterkenny.
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 Letterkenny's climate page.
Letterkenny Temperature in March
Min Temperature
4°C (39°F)
Max Temperature
11°C (52°F)
Chance of Rain
73%
Precipitation
96 mm (3.8 in)
Rainy days
22 days
Sunshine
100 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Letterkenny typically stay consistent throughout March, with daily highs averaging around 11°C (52°F). Nights are cold, with lows typically ranging from 2°C (36°F) to 5°C (41°F).
Average temperatures in March
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in March
Historical weather for Letterkenny in March
Browse day-by-day weather records for Letterkenny spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Letterkenny historical weather extremes in March
The extremes listed below come from historical weather data collected in Letterkenny from 1976 through 2026.
- Letterkenny recorded its highest March temperature of 20°C (68°F) on March 25, 2012.
- The coldest March day was on March 1, 2018, with a maximum of 0°C (32°F).
- Letterkenny registered its coldest March night on March 8, 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
pleasant
tolerable
unpleasant
poor
What to Wear in Letterkenny in March
Pack for changing conditions in Letterkenny in March. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Prepare for significant rainfall with proper waterproof clothing and shoes. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Letterkenny 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 Letterkenny's climate page.
See the full Letterkenny climate overview or explore weather in Ireland.
