July weather forecast
Calais, ME

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Weather in July

July is the peak of the summer in Calais, boasting the highest temperatures of the year with averages from 56.8°F (13.8°C) to 74.8°F (23.8°C). This substantial surge in temperature is complemented by the longest daylight hours, typically 15.2 in total. Akin to June, the days in July see more sunshine and fewer rainy days, with rainfall recorded only on 15.1 days. While the city enjoys the heat and longer days, the evenings offer a pleasant break from the vibrant summer days. With 9.3 hours of average daily sunshine, July truly represents the heart of the summer.

Temperature

The warmest temperatures occur during July, when averages reach a peak of 74.8°F (23.8°C) and a low of 56.8°F (13.8°C).

Humidity

In Calais, the average relative humidity in July is 79%.

Rainfall

In Calais, in July, it is raining for 15.1 days, with typically 1.93" (49mm) of accumulated precipitation. In Calais, during the entire year, the rain falls for 155.3 days and collects up to 32.48" (825mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Calais, the average length of the day in July is 15h and 14min.
On the first day of July, sunrise is at 5:45 am and sunset at 9:20 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:57 pm ADT.

Sunshine

In Calais, the average sunshine in July is 9.3h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 5 during July translates into these guidelines:
Undertake precautions - It is suggested to shield oneself from sunburn. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
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Frequently asked questions

What time of the year is the hottest in Calais?

July is the warmest month in Calais, Maine, exhibiting average temperatures of 74.8°F (23.8°C) at the peak and 56.8°F (13.8°C) at the base.

What are July temperatures in Calais?

July temperatures in Calais, Maine, vary between a high-temperature of 74.8°F (23.8°C) and a low-temperature of 56.8°F (13.8°C).

What is the average humidity in July in Calais?

The average relative humidity in July in Calais, Maine, is 79%.

How many days does it rain in July in Calais?

In July, in Calais, Maine, the rain falls for 15.1 days. Throughout July, 1.93" (49mm) of precipitation is accumulated.

When it does not snow in Calais?

June through September are months without snowfall in Calais, Maine.

What is the average length of the day in July in Calais?

The average day length in July in Calais is 15h and 14min.

When are sunrise and sunset in July in Calais?

In July, on the first day of the month, sunrise is at 5:45 am and sunset at 9:20 pm. On the last day of the month, in Calais, sunrise is at 6:13 am and sunset at 8:57 pm ADT.

How long on average sun shines in July in Calais?

The average sunshine duration in July in Calais is 9.3h.

When is the highest UV index in Calais?

June through August, with an average maximum UV index of 5, are months with the highest UV index in Calais.

How high is the UV index in July in Calais?

In Calais, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
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
Calais, ME

Average temperature in July - Calais, ME
  • Average high temperature in July: 74.8°F

The warmest month (with the highest average high temperature) is July (74.8°F).
The month with the lowest average high temperature is January (26.6°F).

  • Average low temperature in July: 56.8°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

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Average pressure in July
Calais, ME

Average pressure in July - Calais, ME
  • Average pressure in July: 29.92"Hg

The month with the highest atmospheric pressure is September (30.03"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Calais, ME

Average wind speed in July - Calais, ME
  • Average wind speed in July: 6.2mph

The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

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Average humidity in July
Calais, ME

Average humidity in July - Calais, ME
  • Average humidity in July: 79%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).

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Average rainfall in July
Calais, ME

Average rainfall in July - Calais, ME
  • Average rainfall in July: 1.93"

The wettest month (with the highest rainfall) is December (3.7").
The driest month (with the least rainfall) is August (1.77").

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Average rainfall days in July
Calais, ME

Average rainfall days in July - Calais, ME
  • Average rainfall days in July: 15.1 days

The month with the highest number of rainy days is April (17.2 days).
The month with the least rainy days is February (7.8 days).

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Average snowfall in July
Calais, ME

Average snowfall in July - Calais, ME
  • Average snowfall in July: 0"

The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Calais, ME

Average snowfall days in July - Calais, ME
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Calais, ME

Average daylight in July / Average sunshine in July - Calais, ME
  • 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 2min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).

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Average sunshine days in July
Calais, ME

Average sunshine days in July - Calais, ME
  • Average sunshine days in July: 14.1 days

The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is April (8.5 days).

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Average UV index in July
Calais, ME

Average UV index in July - Calais, ME
  • Average UV index in July: 5

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

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Average cloud cover in July
Calais, ME

Average cloud cover in July - Calais, ME
  • Average cloud cover in July: 42

The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 38).

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Average visibility in July
Calais, ME

Average visibility in July - Calais, ME
  • Average visibility in July: 5mi

The months with the highest visibility are May, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, June, July, August and September (5mi).

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Calais, Maine, USA

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