July weather forecast
Isles of Scilly, United Kingdom

July

Weather in July

July marks the height of summer in the Isles of Scilly, United Kingdom. The increase in temperature is evident; however, it does not reach extreme heights, guaranteeing a delightful summer experience. The high point comes when the sea temperature reaches its yearly maximum at 16.6°C (61.9°F), perfect for indulging in various water-based activities. Residents eagerly look forward to this time, aiming to make the most of the comfortable and lively summer days.

Temperature

July in Isles of Scilly denotes a minimal variation in the average high-temperature to a comfortable 17°C (62.6°F) from June's 14.8°C (58.6°F). Isles of Scilly maintains a consistent average nighttime low-temperature of 15.5°C (59.9°F) throughout July.

Humidity

In Isles of Scilly, the average relative humidity in July is 84%.

Rainfall

In July, the rain falls for 15.7 days. Throughout July, 35mm (1.38") of precipitation is accumulated. Throughout the year, there are 200.8 rainfall days, and 599mm (23.58") of precipitation is accumulated.

Snowfall

January, February, April through September, November and December are months without snowfall.

Sea temperature

In July, the average sea temperature is 16.6°C (61.9°F).
Note: In 16.6°C (61.9°F), swimming is not an enjoyable activity for most. The challenge of managing one's breathing increases as the temperature goes under 21°C (69.8°F).

Daylight

In July, the average length of the day is 15h and 51min.
On the first day of July, sunrise is at 5:21 am and sunset at 9:37 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 9:08 pm BST.

Sunshine

In Isles of Scilly, the average sunshine in July is 8.3h.

UV index

The average daily maximum UV index in July is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.
Note: In July, the maximum UV index of 4 suggests this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

What is the temperature in July?
During July, Isles of Scilly experiences an average high-temperature of 17°C (62.6°F) and a low-temperature of 15.5°C (59.9°F).
What is the average humidity in July in Isles of Scilly?
The average relative humidity in July is 84%.
How many days does it rain in July in Isles of Scilly?
In July, the rain falls for 15.7 days. Throughout July, 35mm (1.38") of precipitation is accumulated.
When it does not snow?
January, February, April through September, November and December are months without snowfall.
How cold is the water in July?
In July, the average sea temperature is 16.6°C (61.9°F). For most, swimming in 16.6°C (61.9°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
How many hours of daylight does Isles of Scilly have in July?
In July, the average day length in Isles of Scilly is 15h and 51min.
What time are sunrise and sunset in July?
In July, on the first day of the month, sunrise is at 5:21 am and sunset at 9:37 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 9:08 pm BST.
How many hours of sunshine does Isles of Scilly have in July?
The average sunshine duration in July is 8.3h.
What is the UV index intensity in July?
The average daily maximum UV index in July is 4. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall days
Average sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in July - Isles of Scilly, United Kingdom
Average temperature in July
Isles of Scilly, United Kingdom
  • Average high temperature in July: 17°C

The warmest month (with the highest average high temperature) is August (17.2°C).
The month with the lowest average high temperature is February (9.7°C).

  • Average low temperature in July: 15.5°C

The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is February (7.9°C).

Average pressure in July - Isles of Scilly, United Kingdom
Average pressure in July
Isles of Scilly, United Kingdom
  • Average pressure in July: 1016.5mbar

The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).

Average wind speed in July - Isles of Scilly, United Kingdom
Average wind speed in July
Isles of Scilly, United Kingdom
  • Average wind speed in July: 23.8km/h

The windiest month (with the highest average wind speed) is December (35.9km/h).
The calmest month (with the lowest average wind speed) is July (23.8km/h).

Average humidity in July - Isles of Scilly, United Kingdom
Average humidity in July
Isles of Scilly, United Kingdom
  • Average humidity in July: 84%

The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are January, February, November and December (78%).

Average rainfall in July - Isles of Scilly, United Kingdom
Average rainfall in July
Isles of Scilly, United Kingdom
  • Average rainfall in July: 35mm

The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is May (29mm).

Average rainfall days in July - Isles of Scilly, United Kingdom
Average rainfall days in July
Isles of Scilly, United Kingdom
  • Average rainfall days in July: 15.7 days

The month with the highest number of rainy days is November (21.3 days).
The month with the least rainy days is June (13.1 days).

Average snowfall days in July - Isles of Scilly, United Kingdom
Average snowfall days in July
Isles of Scilly, United Kingdom
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is March (0.2 days).
The months with the least snowfall days are January, February, April, May, June, July, August, September, November and December (0 days).

Average sea temperature in July - Isles of Scilly, United Kingdom
Average sea temperature in July
Isles of Scilly, United Kingdom
  • Average sea temperature in July: 16.6°C

The best month for swimming (with the highest average sea temperature) is August (17.3°C).
The coldest month (with the lowest average sea temperature) is March (10.1°C).

Average daylight in July / Average sunshine in July - Isles of Scilly, United Kingdom
Average daylight in July /
Average sunshine in July
Isles of Scilly, United Kingdom
  • Average daylight in July: 15h and 5min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in July: 8h and 2min

The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).

Average sunshine days in July - Isles of Scilly, United Kingdom
Average sunshine days in July
Isles of Scilly, United Kingdom
  • Average sunshine days in July: 12.8 days

The month with the most sunshine days is June (15 days).
The month with the least sunshine days is November (5.7 days).

Average UV index in July - Isles of Scilly, United Kingdom
Average UV index in July
Isles of Scilly, United Kingdom
  • Average UV index in July: 4

The month with the highest UV index is August (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).

Average cloud cover in July - Isles of Scilly, United Kingdom
Average cloud cover in July
Isles of Scilly, United Kingdom
  • Average cloud cover in July: 49

The months with the most cloud cover are January and December (Cloud cover 62).
The month with the least cloud cover is April (Cloud cover 44).

Average visibility in July - Isles of Scilly, United Kingdom
Average visibility in July
Isles of Scilly, United Kingdom
  • Average visibility in July: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

englishespañol中文
Share