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Photo by ArildV, CC BY-SA 4.0, via Wikimedia Commons.
Isles of Scilly in December
avoid · not the best time to go · the wettest month of the year
The year in Isles of Scilly
Tap a month for its page
- JanJIsles of Scilly in January: avoid
- FebFIsles of Scilly in February: avoid
- MarMIsles of Scilly in March: ok
- AprAIsles of Scilly in April: ok
- MayMIsles of Scilly in May: sweet spot
- JunJIsles of Scilly in June: sweet spot
- JulJIsles of Scilly in July: sweet spot, busy
- AugAIsles of Scilly in August: sweet spot, busy
- SepSIsles of Scilly in September: good
- OctOIsles of Scilly in October: ok
- NovNIsles of Scilly in November: avoid
- DecDIsles of Scilly in December: avoid
- Sweet spot
- Good
- OK
- Avoid
- Busy
Plan this trip
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Where to stay
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Travel insurance
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Renting a pocket Wi-Fi is the other common way to stay connected.
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The numbers
| Daily high | 12°C |
|---|---|
| Nightly low | 10°C |
| Feels like, afternoon | 6°C |
| Rainy days, 1 mm or more | 17 · 135 mm |
| Humidity | 80% |
| Sunshine | 3.7 h/day |
| Daylight | 8.2 h/day |
| Crowds | 80 / 100, higher is quieter |
Ten-year averages for this calendar month. A rainy day is one with at least 1 mm of rain, as a weather station counts it. The model these figures come from drizzles more than a rain gauge, the more so the warmer the month, so its days count from 2 mm, rising to 5 mm in the hottest.
Weather read at Hugh Town, St Mary's: ten years of ERA5 and ERA5-Land reanalysis, through Open-Meteo's open data.
How busy it gets
Public holidays in December
- Christmas Day 25 Dec 2026
- Boxing Day 26 Dec 2026
- Boxing Day (observed) 28 Dec 2026
- Christmas Day (observed) 27 Dec 2027
Holidays crowd a place out and push fares up around them; they count toward the crowd score above.
Isles of Scilly in pictures
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Peter Trimming, CC BY-SA 2.0, via Wikimedia Commons
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David Dixon, CC BY-SA 2.0, via Wikimedia Commons
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David Dixon, CC BY-SA 2.0, via Wikimedia Commons
What to pack
- Warm layers for the evenings, which drop to about 10°C.
- Rain gear you will actually use: about 17 rainy days and 135 mm.
- Humidity averages 80%; breathable fabrics dry faster.
Each line is a threshold over the ten-year figures above, not advice from anywhere else.
Before you go
Type G plugs at 230 V. Drives on the left. The currency is the Pound sterling. Everything for United Kingdom: cost of living, languages, emergency numbers and health.
On arrival in Isles of Scilly: the apps, paying, getting around, tipping and the emergency numbers.
December elsewhere
In December from
The other months at Isles of Scilly
- January avoid
- February avoid
- March ok
- April ok
- May sweet spot
- June sweet spot
- July sweet spot
- August sweet spot
- September good
- October ok
- November avoid
- December
← November · All twelve months at Isles of Scilly · January →
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