Cornwall in March
4.2out of 10
Not the best time
Cold: highs around 4°C. Frequent rain: about 11 rainy days.
4°CAvg high
-6°CAvg low
11Rainy days (76 mm)
11:37 hDaylight
07:20Sunrise · 18:57 Sunset
Why this score
- Cold: highs around 4°C
- Frequent rain: about 11 rainy days
- Nights fall to about -6°C
What to wear and pack
- Winter coat, hat and scarf
- Rain jacket or compact umbrella
- Gloves for freezing mornings
How reliable is the forecast?
Rainfall in March is fairly consistent from year to year (2.7 days). Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -12°C | 73 mm | 12 | – | – | 3.5 |
| February | -2°C | -11°C | 62 mm | 10 | – | – | 3.7 |
| March | 4°C | -6°C | 76 mm | 11 | – | – | 4.2 |
| April | 12°C | 2°C | 101 mm | 12 | – | – | 5.7 |
| May | 20°C | 9°C | 98 mm | 13 | – | – | 6.9 |
| June | 24°C | 13°C | 105 mm | 12 | – | – | 7.3 |
| July | 26°C | 16°C | 100 mm | 13 | – | – | 7.3 |
| August | 25°C | 16°C | 94 mm | 12 | – | – | 7.5 |
| September | 21°C | 11°C | 92 mm | 11 | – | – | 7.5 |
| October | 14°C | 5°C | 104 mm | 12 | – | – | 6.0 |
| November | 7°C | -1°C | 84 mm | 12 | – | – | 4.8 |
| December | 0°C | -7°C | 83 mm | 12 | – | – | 3.4 |
Frequently asked questions
How hot is Cornwall in March?
Daytime highs average 4°C and nights about -6°C.
When is the best time to visit Cornwall?
The best months are August, September, June, July.