Temperatures in July
It's pleasantly warm in July in St Mary's with an average temperature of 20°C. Temperatures this month range from a low of 18°C to a high of 22°C. At night, you can expect temperatures between 15°C and 16°C.
Max and Min Temperatures per Day
This chart shows the daily maximum and minimum temperatures in degrees Celsius for St Mary's in July. The red line indicates the max temperatures, and the blue line shows the minimums.
Start of July
The month of July starts in St Mary's with mild temperatures, averaging around 20°C during the day and nights close to 16°C. There’s little chance of precipitation. The weather is mostly sunny and dry.
Mid-July
By mid-July, the average daytime temperature rises to around 21°C, with nights close to 16°C. There might be a few showers during this period, but plenty of dry days with sunshine too.
End of July
By the end of July, the average daytime temperature in St Mary's will be around 21°C, with nights close to 16°C. There’s regular precipitation, but with a bit of luck, you’ll also get some dry and sunny days.
Water temperature
The water temperature at St Mary's is 15°C this month. This is probably too cold to swim without protective gear.
Precipitation in July
In July, there is an average of 69 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
The average precipitation chance is 29% per day this month. Though it seems pretty low, the weather’s variable. Some days have higher and others lower precipitation chances, which lowers the average.
Precipitation Chance
This chart shows the daily precipitation chance (in percentages) in July for St Mary's. 0% means it never rained on that day in the past 10 years, and 100% means it rained every day. All values in between represent the average chance of precipitation on that day.
St Mary's in July |
London | ||
|---|---|---|---|
 Average Temperature |
20°C | 23°C | |
 High Temp |
22°C | 27°C | |
| Low Temp |
18°C | 21°C | |
 Total Precipitation |
69 mm | 52 mm | |
| Rainy Days |
9 days | 9 days | |
June
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is July a good time to visit St Mary's?
Want nice weather? Then July is a great time to be in St Mary's. You’ll have pleasant temperatures and not too much rain this month.
Temperature records for St Mary's in July
With 26°C, St Mary's hit the highest temperature in the last 10 years in July 2021. The lowest daytime temperature in this month was 15°C in 2020. The extreme night temperatures ranged from a low of 9°C to a high of 19°C.
Check out the climate of St Mary's for all months and discover the best travel time
Daily Temperature in July in St Mary's
This chart shows the average daily temperatures, both day and night, for each day in July in St Mary's, measured in degrees Celsius. The red line represents the maximum temperatures, while the blue line shows the minimums. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, gives an overview of the average daily temperatures during this month.
Daily Precipitation in July in St Mary's
The chart below shows the average daily precipitation in July for St Mary's, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are shown 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 rain is more likely. But it’s still an average, so each day can be different. Based on historical weather data for July, you can expect around 9 days of rain in St Mary's.
Daily UV Index in July in St Mary's
This chart shows the average daily UV index in July in St Mary's, 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 St Mary's Over the Years
This chart shows the average temperature in July in St Mary's, measured in degrees Celsius, over the past years.
Total Precipitation in July in St Mary's Over the Years
This chart shows the average precipitation in July in St Mary's, measured in millimetres over the past years. Precipitation is always measured as water, even if it’s snow or hail.
Daily climate in July for St Mary's
Click on a specific day in July for detailed info on the typical weather on that day in St Mary's. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in July in St Mary's
Have you been to St Mary's in July?
Share your weather experience in July in St Mary's.
Average Weather in St Mary's by Month
Click on a month below to see detailed weather info for St Mary's. 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 St Mary's for all months at once
