August weather forecast
Oswego, NY

The colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers
The colorful sun rising over a calm marina in Oswego, New York, with a view of numerous boats and yachts docked along several piers

Weather in August

August, the last month of the summer in Oswego, is another warm month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 65.8°F (18.8°C).

Temperature

With an average high-temperature of 74.1°F (23.4°C) and an average low-temperature of 65.8°F (18.8°C), August is the warmest month.

Humidity

The average relative humidity in August is 77%.

Rainfall

In August, the rain falls for 18.6 days. Throughout August, 3.82" (97mm) of precipitation is accumulated. In Oswego, New York, during the entire year, the rain falls for 163 days and collects up to 37.83" (961mm) of precipitation.

Snowfall

May through September are months without snowfall in Oswego, New York.

Ocean temperature

With an average ocean temperature of 73.2°F (22.9°C), August is the month with the warmest seawater in Oswego.
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.2°F (22.9°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in August is 13h and 55min.
On the first day of August, sunrise is at 5:55 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 7:43 pm EDT.

Sunshine

The average sunshine in August is 10.3h.

UV index

In August, the average daily maximum UV index in Oswego is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In August, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the warmest month in Oswego?

With an average high-temperature of 74.1°F (23.4°C) and an average low-temperature of 65.8°F (18.8°C), August is the warmest month in Oswego.

What is the temperature in August in Oswego?

In Oswego, New York, in August, the average high-temperature is 74.1°F (23.4°C), and the average low-temperature is 65.8°F (18.8°C).

What is the average humidity in August in Oswego?

In August, the average relative humidity in Oswego is 77%.

How much does it rain in Oswego in August?

In Oswego, in August, it is raining for 18.6 days, with typically 3.82" (97mm) of accumulated precipitation.

When it does not snow in Oswego?

In Oswego, snow does not fall in May through September.

When is the ocean warmest in Oswego?

With an average ocean temperature of 73.2°F (22.9°C), August is the month with the warmest seawater in Oswego.

What is the ocean temperature in August in Oswego?

In Oswego, in August, the average water temperature is 73.2°F (22.9°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.2°F (22.9°C) water may be enjoyable.

How many hours of daylight does Oswego have in August?

In August, the average day length in Oswego, New York, is 13h and 55min.

What time are sunrise and sunset in August in Oswego?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 8:28 pm. On the last day of the month, in Oswego, sunrise is at 6:29 am and sunset at 7:43 pm EDT.

How long on average sun shines in August in Oswego?

The average sunshine duration in August in Oswego is 10.3h.

How high is the UV index in August in Oswego?

The average daily maximum UV index in August in Oswego 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 sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Oswego, NY

Average temperature in August - Oswego, NY
  • Average high temperature in August: 74.1°F

The warmest month (with the highest average high temperature) is August (74.1°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in August: 65.8°F

The months with the highest average low temperature are July and August (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in August
Oswego, NY

Average pressure in August - Oswego, NY
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Oswego, NY

Average wind speed in August - Oswego, NY
  • Average wind speed in August: 9.3mph

The windiest month (with the highest average wind speed) is January (15mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).

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Average humidity in August
Oswego, NY

Average humidity in August - Oswego, NY
  • Average humidity in August: 77%

The month with the highest relative humidity is June (83%).
The months with the lowest relative humidity are September and November (75%).

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Average rainfall in August
Oswego, NY

Average rainfall in August - Oswego, NY
  • Average rainfall in August: 3.82"

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (2.2").

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Average rainfall days in August
Oswego, NY

Average rainfall days in August - Oswego, NY
  • Average rainfall days in August: 18.6 days

The month with the highest number of rainy days is August (18.6 days).
The month with the least rainy days is February (6 days).

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Average snowfall in August
Oswego, NY

Average snowfall in August - Oswego, NY
  • Average snowfall in August: 0"

The month with the highest snowfall is February (3.94").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in August
Oswego, NY

Average snowfall days in August - Oswego, NY
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average sea temperature in August
Oswego, NY

Average sea temperature in August - Oswego, NY
  • Average sea temperature in August: 73.2°F

The best month for swimming (with the highest average sea temperature) is August (73.2°F).
The coldest month (with the lowest average sea temperature) is March (35.4°F).

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Average daylight in August /
Average sunshine in August
Oswego, NY

Average daylight in August / Average sunshine in August - Oswego, NY
  • Average daylight in August: 13h and 55min

The month with the longest days is June (Average daylight: 15h and 22min).
The month with the shortest days is December (Average daylight: 9h and 1min).

  • Average sunshine in August: 10h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).

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Average sunshine days in August
Oswego, NY

Average sunshine days in August - Oswego, NY
  • Average sunshine days in August: 10.2 days

The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is December (8.5 days).

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Average UV index in August
Oswego, NY

Average UV index in August - Oswego, NY
  • Average UV index in August: 5

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in August
Oswego, NY

Average cloud cover in August - Oswego, NY
  • Average cloud cover in August: 29

The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 29).

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Average visibility in August
Oswego, NY

Average visibility in August - Oswego, NY
  • Average visibility in August: 6mi

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

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