Sweyn Holm Island
Tiny uninhabited islet off Orkney, Scotland
Sweyn Holm at a Glance#
How to Get to Sweyn Holm#
Access is by private boat from nearby Orkney harbours; landings are tide- and weather-dependent and should be attempted only with local knowledge.
Tips for Visiting Sweyn Holm#
- Bring good footwear for rocky coastlines and possible sea spray.
- Visit at low tide to explore some of the skerries and boat access points.
- Local boat operators often know the safest landing spots - consult them rather than attempting an unassisted approach.
Best Time to Visit Sweyn Holm#
Late spring through summer is the most practical time to visit; check local marine forecasts before attempting a landing.
Late spring-summer
May-Aug · 6-14°C
Milder weather and calmer seas for landing and exploration.
Autumn
Sep-Oct · 4-10°C
Quieter, but weather can turn quickly.
Weather & Climate near Sweyn Holm#
Climate
Continental climate with cool summers (peaking in August) and cold winters (coldest in February). Temperatures range from 2°C to 15°C. Abundant rainfall (1066 mm/year), wettest in November.
Air Quality:
AQI 22
Good
Best Time to Visit
JuneMayJuly
Temperature & Rainfall
Temperature Range
21°
Warmest Month
-1°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | 3° - 7° | 0° | 110 mm | overcast | 83% | 7.9 m/s | 0.0 low | 6.7h |
| February | Poor | 3° - 7° | 0° | 85 mm | overcast | 83% | 7.5 m/s | 0.1 low | 9.0h |
| March | Poor | 3° - 7° | 0° | 98 mm | overcast | 83% | 7.3 m/s | 0.2 low | 11.6h |
| April | Poor | 4° - 8° | 2° | 66 mm | overcast | 84% | 6.4 m/s | 0.6 moderate | 14.3h |
| May | Acceptable | 6° - 11° | 5° | 52 mm | overcast | 84% | 5.6 m/s | 0.9 moderate | 16.8h |
| June | Acceptable | 8° - 13° | 10° | 55 mm | overcast | 85% | 5.3 m/s | 1.2 high | 18.2h |
| July | Acceptable | 10° - 14° | 12° | 61 mm | overcast | 86% | 5.0 m/s | 1.1 high | 17.5h |
| August | Acceptable | 10° - 15° | 13° | 73 mm | overcast | 86% | 5.0 m/s | 0.8 moderate | 15.3h |
| September | Poor | 9° - 13° | 11° | 102 mm | overcast | 85% | 6.1 m/s | 0.4 low | 12.6h |
| October | Poor | 7° - 11° | 6° | 119 mm | overcast | 84% | 6.9 m/s | 0.1 low | 10.0h |
| November | Poor | 5° - 9° | 3° | 128 mm | overcast | 84% | 7.2 m/s | 0.0 low | 7.4h |
| December | Poor | 4° - 8° | 1° | 117 mm | overcast | 83% | 7.4 m/s | 0.0 low | 5.9h |
