August weather forecast
Winthrop, MA

Share

Weather in August

The last month of the summer, August, is another warm month in Winthrop, Massachusetts, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 64°F (17.8°C).

Temperature

The arrival of August sees a recorded average high-temperature of a still moderately hot 80.4°F (26.9°C), showing little divergence from the previous month's conditions. During August nights, Winthrop records an average temperature of 64°F (17.8°C).

Humidity

The average relative humidity in August is 72%.

Rainfall

In Winthrop, during August, the rain falls for 11.7 days and regularly aggregates up to 1.61" (41mm) of precipitation. In Winthrop, during the entire year, the rain falls for 141.4 days and collects up to 27.2" (691mm) of precipitation.

Snowfall

June through September are months without snowfall.

Ocean temperature

August is the month with the warmest seawater, with an average ocean temperature of 67.6°F (19.8°C).
Note: For most individuals, swimming in 67.6°F (19.8°C) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 69.8°F (21°C).

Daylight

In August, the average length of the day is 13h and 51min.
On the first day of the month, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:08 am and sunset at 7:19 pm EDT.

Sunshine

The month with the most sunshine is August, with an average of 10.5h of sunshine.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, the maximum UV index of 6 suggests this advice:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the average August temperature?

The high-temperature during August is 80.4°F (26.9°C) and the low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, in July is calculated to be 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 72%.

How much does it rain in August?

In August, the rain falls for 11.7 days. Throughout August, 1.61" (41mm) of precipitation is accumulated.

When it does not snow?

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

What month is the ocean warmest?

August is the month with the warmest seawater, with an average ocean temperature of 67.6°F (19.8°C).

What is the ocean temperature in August?

In Winthrop, in August, the average water temperature is 67.6°F (19.8°C). For swimming, a surface water temperature of 67.6°F (19.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Winthrop have in August?

In Winthrop, the average day length in August is 13h and 51min.

What time are sunrise and sunset in August?

On the first day of August in Winthrop, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:19 pm EDT.

What month has the most sunshine?

The month with the most sunshine in Winthrop is August, with an average of 10.5h of sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 10.5h.

What is the month with the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index reading in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health risk from 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 August
Winthrop, MA

Average temperature in August - Winthrop, MA
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in August
Winthrop, MA

Average pressure in August - Winthrop, MA
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Winthrop, MA

Average wind speed in August - Winthrop, MA
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
Winthrop, MA

Average humidity in August - Winthrop, MA
  • Average humidity in August: 72%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).

Average rainfall in August
Winthrop, MA

Average rainfall in August - Winthrop, MA
  • Average rainfall in August: 1.61"

The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").

Average rainfall days in August
Winthrop, MA

Average rainfall days in August - Winthrop, MA
  • Average rainfall days in August: 11.7 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in August
Winthrop, MA

Average snowfall in August - Winthrop, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Winthrop, MA

Average snowfall days in August - Winthrop, MA
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in August
Winthrop, MA

Average sea temperature in August - Winthrop, MA
  • Average sea temperature in August: 67.6°F

The best month for swimming (with the highest average sea temperature) is August (67.6°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).

Average daylight in August /
Average sunshine in August
Winthrop, MA

Average daylight in August / Average sunshine in August - Winthrop, MA
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Winthrop, MA

Average sunshine days in August - Winthrop, MA
  • Average sunshine days in August: 17 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (13 days).

Average UV index in August
Winthrop, MA

Average UV index in August - Winthrop, MA
  • Average UV index in August: 6

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

Average cloud cover in August
Winthrop, MA

Average cloud cover in August - Winthrop, MA
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Winthrop, MA

Average visibility in August - Winthrop, MA
  • Average visibility in August: 6mi

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

Winthrop, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location