July weather forecast
Scilly, Ireland

July

Weather in July

July, the same as June, is another comfortable summer month in Scilly, Ireland, with an average temperature varying between 17.8°C (64°F) and 12.1°C (53.8°F).

Temperature

July, recording an average high temperature of 17.8°C (64°F) and a low temperature of 12.1°C (53.8°F), is Scilly's warmest month.

Humidity

In July, the average relative humidity is 85%.

Rainfall

In Scilly, during July, the rain falls for 21.3 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Scilly, there are 198 rainfall days, and 586mm (23.07") of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In July, the average length of the day is 16h and 8min.
On the first day of July, sunrise is at 5:20 am and sunset at 9:55 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 9:24 pm IST.

Sunshine

In July, the average sunshine is 6.9h.

UV index

The months with the highest UV index in Scilly are June through August, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 4 during July translates into the following guidance:
Exercise prevention - Warding off sunburn is urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What time of the year is the hottest?
In Scilly, the average highest temperatures are observed in July, with a high of 17.8°C (64°F) and a low of 12.1°C (53.8°F).
What is the average July temperature?
An average high-temperature, in July, in Scilly, is 17.8°C (64°F) and the average low-temperature is 12.1°C (53.8°F).
What is the average humidity in July?
In Scilly, the average relative humidity in July is 85%.
How much does it rain in July?
In Scilly, Ireland, during July, the rain falls for 21.3 days and regularly aggregates up to 49mm (1.93") of precipitation.
When it does not snow?
In Scilly, snow does not fall in April through October.
What is the average length of the day in July?
In Scilly, the average day length in July is 16h and 8min.
When are sunrise and sunset in July?
In July, on the first day of the month, sunrise is at 5:20 am and sunset at 9:55 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 9:24 pm IST.
How long on average sun shines in July?
In July, the average sunshine duration is 6.9h.
When is the highest UV index?
June through August, with an average maximum UV index of 4, are months with the highest UV index.
What is the UV index reading in July?
In Scilly, the average daily maximum UV index in July is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
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
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in July - Scilly, Ireland
Average temperature in July
Scilly, Ireland
  • Average high temperature in July: 17.8°C

The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in July: 12.1°C

The month with the highest average low temperature is July (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).

Average pressure in July - Scilly, Ireland
Average pressure in July
Scilly, Ireland
  • Average pressure in July: 1014.9mbar

The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009mbar).

Average wind speed in July - Scilly, Ireland
Average wind speed in July
Scilly, Ireland
  • Average wind speed in July: 16.1km/h

The windiest month (with the highest average wind speed) is December (23.5km/h).
The calmest months (with the lowest average wind speed) are June and July (16.1km/h).

Average humidity in July - Scilly, Ireland
Average humidity in July
Scilly, Ireland
  • Average humidity in July: 85%

The months with the highest relative humidity are October and December (87%).
The months with the lowest relative humidity are February, March and April (84%).

Average rainfall in July - Scilly, Ireland
Average rainfall in July
Scilly, Ireland
  • Average rainfall in July: 49mm

The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is March (33mm).

Average rainfall days in July - Scilly, Ireland
Average rainfall days in July
Scilly, Ireland
  • Average rainfall days in July: 21.3 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is February (13.5 days).

Average snowfall in July - Scilly, Ireland
Average snowfall in July
Scilly, Ireland
  • Average snowfall in July: 0mm

The month with the highest snowfall is March (6mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in July - Scilly, Ireland
Average snowfall days in July
Scilly, Ireland
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in July / Average sunshine in July - Scilly, Ireland
Average daylight in July /
Average sunshine in July
Scilly, Ireland
  • Average daylight in July: 16h and 1min

The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).

  • Average sunshine in July: 6h and 5min

The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in July - Scilly, Ireland
Average sunshine days in July
Scilly, Ireland
  • Average sunshine days in July: 6.8 days

The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is August (5.8 days).

Average UV index in July - Scilly, Ireland
Average UV index in July
Scilly, Ireland
  • Average UV index in July: 4

The months with the highest UV index are June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July - Scilly, Ireland
Average cloud cover in July
Scilly, Ireland
  • Average cloud cover in July: 57

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 52).

Average visibility in July - Scilly, Ireland
Average visibility in July
Scilly, Ireland
  • Average visibility in July: 9km

The months with the highest visibility are February and March (10km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (9km).

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