July weather forecast
Manchester, WA

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Weather in July

July is a moderately hot summer month in Manchester, Washington, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 77°F (25°C).

Temperature

The shift from June to July introduces a subtle increase in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) to a warm 77°F (25°C). Manchester sees a consistent average low-temperature of 52.7°F (11.5°C) in July, indicating a substantial decrease from the day's temperature.

Humidity

With an average relative humidity of 69%, July is the least humid month.

Rainfall

The month with the least rainfall is July, when the rain falls for 6.2 days and typically collects 0.28" (7mm) of precipitation.

Snowfall

April through October are months without snowfall.

Ocean temperature

In Manchester, the average seawater temperature in July is 50.5°F (10.3°C).
Note: Swimming in 50.5°F (10.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Manchester, the average length of the day in July is 15h and 31min.
On the first day of July, sunrise is at 5:17 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:45 pm PDT.

Sunshine

In Manchester, the average sunshine in July is 10.5h.

UV index

The month with the highest UV index is July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average July temperature?

The high-temperature during July is 77°F (25°C) and the low-temperature is 52.7°F (11.5°C).

What is the least humid month?

The least humid month is July, with an average relative humidity of 69%.

What is the average humidity in July?

The average relative humidity in July is 69%.

What is the driest month?

July is the month with the least rainfall. Rain falls for 6.2 days and accumulates 0.28" (7mm) of precipitation.

How many days does it rain in July?

In Manchester, Washington, during July, the rain falls for 6.2 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When it does not snow?

April through October are months without snowfall.

What is the water temperature in July?

In Manchester, the average seawater temperature in July is 50.5°F (10.3°C). Swimming in 50.5°F (10.3°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

The average day length in July is 15h and 31min.

When are sunrise and sunset in July?

In July, on the first day of the month, sunrise is at 5:17 am and sunset at 9:11 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:45 pm PDT.

How long on average sun shines in July?

The average sunshine duration in July is 10.5h.

What is the month with the highest UV index?

The month with the highest UV index is July, with an average maximum UV index of 6.

How high is the UV index in July?

The average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Manchester, WA

Average temperature in July - Manchester, WA
  • Average high temperature in July: 77°F

The warmest month (with the highest average high temperature) is August (77.2°F).
The month with the lowest average high temperature is December (43.2°F).

  • Average low temperature in July: 52.7°F

The month with the highest average low temperature is August (53.6°F).
The coldest month (with the lowest average low temperature) is December (34.9°F).

Average pressure in July
Manchester, WA

Average pressure in July - Manchester, WA
  • Average pressure in July: 30.05"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are March, August and September (30.01"Hg).

Average wind speed in July
Manchester, WA

Average wind speed in July - Manchester, WA
  • Average wind speed in July: 3.5mph

The windiest month (with the highest average wind speed) is March (5.5mph).
The calmest months (with the lowest average wind speed) are July and August (3.5mph).

Average humidity in July
Manchester, WA

Average humidity in July - Manchester, WA
  • Average humidity in July: 69%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is July (69%).

Average rainfall in July
Manchester, WA

Average rainfall in July - Manchester, WA
  • Average rainfall in July: 0.28"

The wettest months (with the highest rainfall) are January and December (2.05").
The driest month (with the least rainfall) is July (0.28").

Average rainfall days in July
Manchester, WA

Average rainfall days in July - Manchester, WA
  • Average rainfall days in July: 6.2 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (5.4 days).

Average snowfall in July
Manchester, WA

Average snowfall in July - Manchester, WA
  • Average snowfall in July: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in July
Manchester, WA

Average snowfall days in July - Manchester, WA
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in July
Manchester, WA

Average sea temperature in July - Manchester, WA
  • Average sea temperature in July: 50.6°F

The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).

Average daylight in July /
Average sunshine in July
Manchester, WA

Average daylight in July / Average sunshine in July - Manchester, WA
  • 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: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).

Average sunshine days in July
Manchester, WA

Average sunshine days in July - Manchester, WA
  • Average sunshine days in July: 22.4 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is February (11.8 days).

Average UV index in July
Manchester, WA

Average UV index in July - Manchester, WA
  • Average UV index in July: 6

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in July
Manchester, WA

Average cloud cover in July - Manchester, WA
  • Average cloud cover in July: 27

The month with the most cloud cover is December (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in July
Manchester, WA

Average visibility in July - Manchester, WA
  • Average visibility in July: 6mi

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

Manchester, Washington, USA

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