Isles of Scilly weather in March
Temperature, sea and sunshine in March: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in March
Poor
Best time to visit: May – August
What is the weather like in Isles of Scilly in March?
In March, Isles of Scilly is cold: daytime highs average 10 °C, and nights cool down to about 8 °C. The sea averages 10.1 °C – swimming is only for the hardy. Expect around 4 hours of sunshine a day. Rain is frequent, with about 12 rainy days and 62 mm in total. It is often windy, with gusts of around 39 km/h. All in all, March is not an ideal month for a holiday in Isles of Scilly.
March compared
How the weather changes from February to April. Tap a month to open it.
| FebruaryFeb | MarchMar | AprilApr | |
|---|---|---|---|
| Score | 8 | 13 | 23 |
| Day | 10° | 10° | 10° |
| Night | 8° | 8° | 9° |
| Sea | 10° | 10° | 11° |
| Sun | 3 h | 4 h | 7 h |
| Rain days | 13 | 12 | 11 |
More details for March
- Daylight
- 11 h 47 min06:41 – 18:28
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 39 km/haverage daily peakAll months
- Cloud cover
- 69 %on averageAll months
- Hot days
- 0 days30 °C or more
- Time zone
- UTC+0Europe/London
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 20 %41 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in March
- Sunscreen
- Warm jacket
- Rain jacket or umbrella
- Windproof jacket
Isles of Scilly in March: quick answers
Is Isles of Scilly hot in March?
No. In March, Isles of Scilly is cold: daytime highs average 10 °C and nights drop to about 8 °C.
Can you swim in Isles of Scilly in March?
Only if you don't mind cold water: in March the sea averages just 10.1 °C. Comfortable swimming temperatures are not reached at any time of year.
Does it rain much in Isles of Scilly in March?
Rain is frequent, with about 12 rainy days and 62 mm in total.
Isles of Scilly month by month
The whole year in Isles of ScillyAll destinations: United KingdomWhere to go in MarchSea temperature in March
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences