Weather in July
Temperature
The warmest period in St. John's is July, when temperatures fluctuate between an average high of 20.7°C (69.3°F) and a low of 10.9°C (51.6°F).Rainfall
In St. John's, in July, during 13.6 rainfall days, 92mm (3.62") of precipitation is typically accumulated. Throughout the year, in St. John's, there are 162.7 rainfall days, and 1207mm (47.52") of precipitation is accumulated.Snowfall
In St. John's, snow does not fall in July through September.Sea temperature
In St. John's, Canada, the average seawater temperature in July is 10.9°C (51.6°F).Note: It is risky to swim in 10.9°C (51.6°F). Temperatures beneath 10°C (50°F) induce rapid cold shock and hyperventilation.
Daylight
In St. John's, the average length of the day in July is 15h and 31min.On the first day of July in St. John's, sunrise is at 5:07 am and sunset at 9:01 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:36 pm NDT.
Sunshine
The month with the most sunshine in St. John's, Canada, is July, with an average of 7h of sunshine.UV index
The months with the highest UV index in St. John's, Canada, are June and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 7 in July translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What is the hottest time of year in St. John's?
What is the temperature in July in St. John's?
How much does it rain in St. John's in July?
When it does not snow in St. John's?
Does it snow in St. John's in July?
What is the water temperature in July in St. John's?
What is the average length of the day in July in St. John's?
When is the sunrise / sunset in July in St. John's?
What month has the most sunshine in St. John's?
How many hours of sunshine does St. John's have in July?
What are the months with the highest UV index in St. John's?
How high is the UV index in July in St. John's?
Average temperature in July
St. John's, Canada
- Average high temperature in July: 20.7°C
The warmest month (with the highest average high temperature) is July (20.7°C).
The month with the lowest average high temperature is February (-1.1°C).
- Average low temperature in July: 10.9°C
The month with the highest average low temperature is August (11.6°C).
The coldest month (with the lowest average low temperature) is February (-8.6°C).
Average rainfall in July
St. John's, Canada
- Average rainfall in July: 91.6mm
The wettest month (with the highest rainfall) is October (153.7mm).
The driest month (with the least rainfall) is February (61.6mm).
Average rainfall days in July
St. John's, Canada
- Average rainfall days in July: 13.6 days
The month with the highest number of rainy days is October (18.1 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in July
St. John's, Canada
- Average snowfall in July: 0mm
The month with the highest snowfall is January (887mm).
The months with the least snowfall are July, August and September (0mm).
Average snowfall days in July
St. John's, Canada
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are July, August and September (0 days).
Average sea temperature in July
St. John's, Canada
- Average sea temperature in July: 10.9°C
The best month for swimming (with the highest average sea temperature) is August (13.9°C).
The coldest month (with the lowest average sea temperature) is March (-0.4°C).
Average daylight in July /
Average sunshine in July
St. John's, Canada
- Average daylight in July: 15h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 7h
The month with the most sunshine is July (Average sunshine: 7h).
The month with the least sunshine is December (Average sunshine: 2h).
Average UV index in July
St. John's, Canada
- Average UV index in July: 7
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 1).
St. John's, Canada
Weather forecast for your location
2. Allow the app to use your location
