When to go · Belfast
Belfast in March
Good month. Outside the best window (May–Sep). Across United Kingdom: Days lengthen quickly; daffodils and lambs. Easter may fall at the end of the month.
Key facts
- Verdict
- Good
- Temperature
- 11°C (51°F)51°F (11°C) / 3°C (38°F)38°F (3°C)
- average high / low
- Rain days
- 17
- Crowds
- Medium
- United Kingdom overall
- Prices
- Medium
- United Kingdom overall
Verdict
Outside the best window (May–Sep). Across United Kingdom: Days lengthen quickly; daffodils and lambs. Easter may fall at the end of the month.
Is another month better than March?
March is rated good. These months rate higher:
Weather in March
- BelfastHighs around 10.5 °C (51 °F), lows around 3.1 °C (38 °F), rain on about 17 daysHighs around 51 °F (10.5 °C), lows around 38 °F (3.1 °C), rain on about 17 days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
St Patrick's Day
17 Mar (Northern Ireland) · United Kingdom
Holiday in Northern Ireland only; parades in Belfast.
Easter (Good Friday, Easter Monday) big impact
26–29 Mar 2027 · United Kingdom
Four-day weekend; engineering works close rail lines; school holidays around it.
Crowds and prices
- Crowds · United Kingdom overall
- Medium
- Prices · United Kingdom overall
- Medium
United Kingdom overall: Days lengthen quickly; daffodils and lambs. Easter may fall at the end of the month.
Compare two months
Weather, crowds and prices for any two months in Belfast, side by side.
Verdict
Mar: Good
May: Great (better)
Daytime high
Mar: 10.5 °C (51 °F)51 °F (10.5 °C)
May: 15.7 °C (60 °F)60 °F (15.7 °C)
Night low
Mar: 3.1 °C (38 °F)38 °F (3.1 °C)
May: 7 °C (45 °F)45 °F (7 °C)
Rain days
Mar: 17
May: 15 (better)
Crowds
Mar: Medium
May: Medium
Prices
Mar: Medium
May: Medium
Festivals listed
Mar: 2
May: 0
March: Outside the best window (May–Sep). Across United Kingdom: Days lengthen quickly; daffodils and lambs. Easter may fall at the end of the month.
May: Inside Belfast's best window: May–Sep.
Belfast: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings
- A rain jacket or umbrella and shoes that dry fast