July weather forecast
Saint John, Canada

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Weather in July

July is Saint John, Canada's quintessential summer month with suitably warm weather. It typifies the high summer season with a meteorological peak amid the prevailing conditions. Longer and warmer days imply more outdoor activities, picnics, and beach excursions for locals and tourists alike. Despite a few summer showers, July provides a favorable climate for experiencing the city's outdoors in full swing. Significant is July’s temperature that can escalate between 13.9°C (57°F) and 20.8°C (69.4°F).

Temperature

The shift from June to July is marked by a slight increase in the average high-temperature, moving from an enjoyable 16.8°C (62.2°F) to a pleasant 20.8°C (69.4°F). July brings Saint John a consistent average low-temperature of 13.9°C (57°F).

Humidity

The average relative humidity in July in Saint John is 83%.

Rainfall

In Saint John, during July, the rain falls for 12.4 days and regularly aggregates up to 28mm (1.1") of precipitation. Throughout the year, there are 122.4 rainfall days, and 390mm (15.35") of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Sea temperature

In July, the average sea temperature is 12.3°C (54.1°F).
Note: Navigating the 12.3°C (54.1°F) at 13°C (55.4°F) is no joy, and temperatures less than 10°C (50°F) can threaten breathing and cause a chilling shock, gauging personal stamina.

Daylight

In Saint John, Canada, the average length of the day in July is 15h and 14min.
On the first day of the month, sunrise is at 5:40 am and sunset at 9:15 pm. On the last day of July, sunrise is at 6:08 am and sunset at 8:52 pm ADT.

Sunshine

The average sunshine in July is 9.2h.

UV index

July and August, with an average maximum UV index of 5, are months with the highest UV index in Saint John. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: In July, the maximum UV index of 5 suggests these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What is the temperature in July in Saint John?

July temperatures in Saint John, Canada, vary between a high-temperature of 20.8°C (69.4°F) and a low-temperature of 13.9°C (57°F).

What is the average humidity in July in Saint John?

The average relative humidity in July in Saint John, Canada, is 83%.

How many days does it rain in July in Saint John?

In Saint John, during July, the rain falls for 12.4 days and regularly aggregates up to 28mm (1.1") of precipitation.

When it does not snow in Saint John?

June through October are months without snowfall.

How cold is the water in July in Saint John?

In Saint John, the average seawater temperature in July is 12.3°C (54.1°F). Swimming in 12.3°C (54.1°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in July in Saint John?

In July, the average day length in Saint John, Canada, is 15h and 14min.

What time are sunrise and sunset in July in Saint John?

On the first day of July in Saint John, sunrise is at 5:40 am and sunset at 9:15 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:52 pm ADT.

How long on average sun shines in July in Saint John?

The average sunshine duration in July in Saint John is 9.2h.

What are the months with the highest UV index in Saint John?

The months with the highest UV index are July and August, with an average maximum UV index of 5.

What is the UV index intensity in July in Saint John?

The average daily maximum UV index in July in Saint John, Canada, is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
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
Saint John, Canada

Average temperature in July - Saint John, Canada
  • Average high temperature in July: 20.8°C

The warmest month (with the highest average high temperature) is August (21.5°C).
The month with the lowest average high temperature is January (-1.9°C).

  • Average low temperature in July: 13.9°C

The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).

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Average pressure in July
Saint John, Canada

Average pressure in July - Saint John, Canada
  • Average pressure in July: 1013.3mbar

The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is June (1012.8mbar).

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Average wind speed in July
Saint John, Canada

Average wind speed in July - Saint John, Canada
  • Average wind speed in July: 12.5km/h

The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is August (12.3km/h).

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Average humidity in July
Saint John, Canada

Average humidity in July - Saint John, Canada
  • Average humidity in July: 83%

The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are October and November (80%).

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Average rainfall in July
Saint John, Canada

Average rainfall in July - Saint John, Canada
  • Average rainfall in July: 28mm

The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (22mm).

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Average rainfall days in July
Saint John, Canada

Average rainfall days in July - Saint John, Canada
  • Average rainfall days in July: 12.4 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (5.4 days).

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Average snowfall in July
Saint John, Canada

Average snowfall in July - Saint John, Canada
  • Average snowfall in July: 0mm

The month with the highest snowfall is January (40mm).
The months with the least snowfall are June, July, August, September and October (0mm).

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Average snowfall days in July
Saint John, Canada

Average snowfall days in July - Saint John, Canada
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is March (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in July
Saint John, Canada

Average sea temperature in July - Saint John, Canada
  • Average sea temperature in July: 12.3°C

The best month for swimming (with the highest average sea temperature) is August (13.3°C).
The coldest month (with the lowest average sea temperature) is March (2.9°C).

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Average daylight in July /
Average sunshine in July
Saint John, Canada

Average daylight in July / Average sunshine in July - Saint John, Canada
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).

  • Average sunshine in July: 9h and 1min

The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

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Average sunshine days in July
Saint John, Canada

Average sunshine days in July - Saint John, Canada
  • Average sunshine days in July: 15.3 days

The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is April (11.8 days).

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Average UV index in July
Saint John, Canada

Average UV index in July - Saint John, Canada
  • Average UV index in July: 5

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in July
Saint John, Canada

Average cloud cover in July - Saint John, Canada
  • Average cloud cover in July: 42

The month with the most cloud cover is February (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in July
Saint John, Canada

Average visibility in July - Saint John, Canada
  • Average visibility in July: 9km

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

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Saint John, Canada

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