Best time to visit Scilly Isles

Q: When is the best time to visit Scilly Isles?

The best time to visit Scilly Isles is July based on the following average weather conditions. Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 10 hours or more.

Q: Which is the hottest month in Scilly Isles?

The hottest time of year in Scilly Isles is normally July. Expect maximum daytime temperatures to reach 19°C.

Q: Which month has the most rain in Scilly Isles?

In terms of rainfall, December is usually the wettest month in Scilly Isles with 142mm on average. There are normally 20 days in December with some rain.

Q: When is it sunniest in Scilly Isles?

The sunniest time of year in Scilly Isles is normally May with bright sunshine on average for 45% of daylight hours; that's 7 hours of sunshine per day.

Q: When is the sea warmest in Scilly Isles?

The sea is usually at its warmest in Scilly Isles in August when the water temperature reaches 17°C.

Find the best time to visit Scilly Isles and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Scilly Isles by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for England

Spabreaks.com: Latest offers on UK spa days

Sale

Check out latest special offers on spa days in the UK
Filter offers by price, destination, package & facilities
Book spa days in popular cities & country locations

Go to Spabreaks.com deal >>

View all Spabreaks.com offers

When is the best time to visit Scilly Isles?

The best time to visit Scilly Isles is July based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

0
Jan
0
Feb
0.5
Mar
1.5
Apr
1.5
May
2
Jun
3
Jul
2
Aug
1.5
Sep
0
Oct
0
Nov
0
Dec

Change criteria

Max Day Temperature (°F)

48
Jan
46
Feb
50
Mar
52
Apr
57
May
63
Jun
66
Jul
64
Aug
63
Sep
57
Oct
52
Nov
50
Dec

Hours of Sunshine (daily)

2
Jan
3
Feb
4
Mar
6
Apr
7
May
7
Jun
7
Jul
6
Aug
5
Sep
3
Oct
2
Nov
2
Dec

Which is the hottest month in Scilly Isles?

The hottest time of year in Scilly Isles is normally July. Expect maximum daytime temperatures to reach 66°F.

Which month has the most rain in Scilly Isles?

In terms of rainfall, December is usually the wettest month in Scilly Isles with 5.6 inches on average. There are normally 20 days in December with some rain.

When is it sunniest in Scilly Isles?

The sunniest time of year in Scilly Isles is normally May with bright sunshine on average for 45% of daylight hours; that's 7 hours of sunshine per day.

When is the sea warmest in Scilly Isles?

The sea is usually at its warmest in Scilly Isles in August when the water temperature reaches 63°F.

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for England (Scilly Isles) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)

England travel features

Do you want to learn more about England? Read our latest features covering travel tips and insider destination guides on where to go and what to do in England.