July weather forecast
Belfast, ME

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Weather in July

July is the most scorching month in Belfast, Maine, when summer is at its peak. Weather conditions can switch from warm, sunny days to occasional summer showers. Despite the prevalent heat, it is the month with the hottest temperatures, peaking at a sweltering 73.9°F (23.3°C). July is the ideal time for locals to cool off in Maine's beautiful coastline, and tourists flock to the town to take advantage of its quintessential New England summer. Amid these conditions, summer events take over the small town, making it a vibrant and lively place to be.

Temperature

The months of July and August are noted for their peak temperatures in Belfast, with an average high-temperature of 73.9°F (23.3°C).

Humidity

February and July, with an average relative humidity of 83%, are the most humid months in Belfast.

Rainfall

The months with the least rainfall are July and September Rain falls for 14.5 days and accumulates 1.46" (37mm) of rain.

Snowfall

June through September are months without snowfall.

Ocean temperature

In July, the average ocean temperature in Belfast is 58.5°F (14.7°C).
Note: Staying in 58.5°F (14.7°C) waters for just a few moments at 55.4°F (13°C) can be harrowing, and below 50°F (10°C) poses breathing and cold shock risks, depending on individual tolerance.

Daylight

The average length of the day in July in Belfast is 15h and 8min.
On the first day of July in Belfast, sunrise is at 4:55 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 5:22 am and sunset at 8:02 pm EDT.

Sunshine

In July, the average sunshine in Belfast is 9.4h.

UV index

June through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, a daily UV index of 5 turns into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What month is the hottest in Belfast?

In Belfast, Maine, the warmest period comes during July and August, when the average high-temperature touches 73.9°F (23.3°C).

What is the average July temperature in Belfast?

Belfast in July has an average high-temperature of 73.9°F (23.3°C) and an average low-temperature of 57.7°F (14.3°C).

What are the most humid months in Belfast?

February and July, with an average relative humidity of 83%, are most humid months in Belfast, Maine.

What is the average humidity in July in Belfast?

In July, the average relative humidity in Belfast is 83%.

What is the driest month in Belfast?

July and September are months with the least rain in Belfast, Maine, when the rain falls for 14.5 days and typically aggregates up to 1.46" (37mm) of rain.

How many days does it rain in July in Belfast?

In Belfast, Maine, during July, the rain falls for 14.5 days and regularly aggregates up to 1.46" (37mm) of precipitation.

When it does not snow in Belfast?

In Belfast, snow does not fall in June through September.

How cold is the water in July in Belfast?

In Belfast, the average seawater temperature in July is 58.5°F (14.7°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Belfast have in July?

In Belfast, the average day length in July is 15h and 8min.

When is the sunrise / sunset in July in Belfast?

In July, on the first day of the month, sunrise is at 4:55 am and sunset at 8:24 pm. On the last day of the month, in Belfast, Maine, sunrise is at 5:22 am and sunset at 8:02 pm EDT.

How long on average sun shines in July in Belfast?

In July, the average sunshine duration in Belfast is 9.4h.

What are the months with the highest UV index in Belfast?

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

What is the UV index intensity in July in Belfast?

In Belfast, the average daily maximum UV index in July is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJulyASOND
Jun
July
Aug
Average high temperature
66.7°F 19.3°C
73.9°F 23.3°C
73.9°F 23.3°C
Average low temperature
50.7°F 10.4°C
57.7°F 14.3°C
56.8°F 13.8°C
Average pressure
29.91" 760mmHg
29.93" 760mmHg
29.96" 761mmHg
Average wind speed
7mph 11.3km/h
6mph 9.7km/h
6mph 9.7km/h
Average max. wind speed
7.6mph 12.2km/h
6.6mph 10.6km/h
6.6mph 10.6km/h
Average wind speed gusts
11.2mph 18km/h
9.9mph 15.9km/h
9.8mph 15.8km/h
Average humidity
82%
83%
82%
Average rainfall
2.09" 53mm
1.46" 37mm
1.85" 47mm
Average rainfall days
14.8
14.5
13
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
52°F 11.1°C
58.5°F 14.7°C
60.4°F 15.8°C
Average daylight
15h 3min
15h 1min
14h 0min
Average sunshine
8h 2min
9h 2min
9h 5min
Average sunshine days
13.6
14.7
15.8
Average UV index
5
5
5
Average cloud cover
47%
41%
37%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in July
Belfast, ME

Average temperature in July - Belfast, ME
  • Average high temperature in July: 73.9°F

The warmest months (with the highest average high temperature) are July and August (73.9°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in July: 57.7°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

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Average pressure in July
Belfast, ME

Average pressure in July - Belfast, ME
  • Average pressure in July: 29.93"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in July
Belfast, ME

Average wind speed in July - Belfast, ME
  • Average wind speed in July: 6mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

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Average humidity in July
Belfast, ME

Average humidity in July - Belfast, ME
  • Average humidity in July: 83%

The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is November (77%).

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Average rainfall in July
Belfast, ME

Average rainfall in July - Belfast, ME
  • Average rainfall in July: 1.46"

The wettest month (with the highest rainfall) is December (2.72").
The driest months (with the least rainfall) are July and September (1.46").

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Average rainfall days in July
Belfast, ME

Average rainfall days in July - Belfast, ME
  • Average rainfall days in July: 14.5 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (7.1 days).

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Average snowfall in July
Belfast, ME

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

The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in July
Belfast, ME

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

The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in July
Belfast, ME

Average sea temperature in July - Belfast, ME
  • Average sea temperature in July: 58.5°F

The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).

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

Average daylight in July / Average sunshine in July - Belfast, ME
  • Average daylight in July: 15h and 1min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in July: 9h and 2min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

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Average sunshine days in July
Belfast, ME

Average sunshine days in July - Belfast, ME
  • Average sunshine days in July: 14.7 days

The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.7 days).

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Average UV index in July
Belfast, ME

Average UV index in July - Belfast, 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
Belfast, ME

Average cloud cover in July - Belfast, ME
  • Average cloud cover in July: 41

The month with the most cloud cover is March (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 37).

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Average visibility in July
Belfast, ME

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

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

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Belfast, Maine, USA

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