WalesAverage weather for Sully Island in July
It's pleasantly warm in July in Sully Island with an average temperature of 20°C. Temperatures this month range from a low of 19°C to a high of 23°C. At night, you can expect temperatures between 11°C and 15°C.
Start of July
The month of July starts in Sully Island with mild temps, averaging around 20°C during the day and nights around 13°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid July
By mid-July, daytime temps rise to around 21°C, with nights around 13°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of July
By the end of July, the average daytime temperature in Sully Island is around 21°C, while nighttime temps are about 14°C. A shower might pop up, but overall, the weather will be dry and sunny.
Water temperature
The water temperature at Sully Island is 18°C this month. You can swim, but it's a bit chilly.
In July, there is an average of 79 mm of precipitation, spread over 13 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Sully Island in July |
New York | ||
|---|---|---|---|
 Average temperature |
20°C | 31°C | |
 Max. temperature |
23°C | 33°C | |
| Min. temperature |
19°C | -5°C | |
 Total precipitation |
79 mm | 160 mm | |
| Rainy days |
13 days | 18 days | |
June
UV index
The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is July a good time to visit Sully Island?
Looking for great weather? July is a good time to be in Sully Island. The temperatures are nice, and there’s not too much rain.
Temperature records
With 35°C in 2022, Sully Island reached the highest temperature in July over the past 10 years. The lowest daytime temperature in this month was 13°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 20°C.
Check out the climate of Sully Island for all months and discover the best travel time
Daily Temperature in July in Sully Island
This chart shows the average daily high and low temperatures in July for Sully Island, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in July in Sully Island
The chart below shows the average daily precipitation in July for Sully Island, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for July, you can expect about 13 days of precipitation in Sully Island.
Daily UV index in July in Sully Island
This chart shows the average daily UV index in July in Sully Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in July in Sully Island over the years
This chart shows the average temperature in July in Sully Island, measured in degrees Celsius, over the past few years.
Total precipitation in July in Sully Island over the years
This chart shows the average precipitation in July in Sully Island, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in July for Sully Island
Click on any day in July to get detailed info about the usual weather on that day in Sully Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in Sully Island
Have you been to Sully Island in July?
Share your weather experience in July in Sully Island.
Average weather in Sully Island by month
Click on a month below to see detailed weather info for Sully Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sully Island for all months at once
