August weather forecast and climate
Islip, NY

What is the temperature in August in Islip?

In August, in Islip, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 65.3°F (18.5°C).

How much does it rain in Islip in August?

In Islip, New York, in August, it is raining for 8.5 days, with typically 4" (101.1mm) of accumulated precipitation.

When is the sea warmest in Islip?

With an average sea temperature of 73.9°F (23.3°C), August is the month with the warmest seawater in Islip, New York. For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73.9°F (23.3°C).

What is the sea temperature in August in Islip?

In Islip, New York, in August, the average water temperature is 73.9°F (23.3°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 73.9°F (23.3°C).
Average temperature in August - Islip, NY
  • 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 (38°F).

  • Average low temperature in August: 65.3°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.3°F).

Average rainfall in August - Islip, NY
  • Average rainfall in August: 4"

The wettest month (with the highest rainfall) is March (4.4").
The driest month (with the lowest rainfall) is February (3.3").

Average rainfall days in August - Islip, NY
  • Average rainfall days in August: 8.5 days

The month with the highest number of rainy days is April (11.3 days).
Months with the lowest number of rainy days are August and October (8.5 days).

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

The month with the highest snowfall is February (7.1").
Months with the lowest snowfall are May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is January (3.7 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August - Islip, NY
  • Average sea temperature in August: 74°F

The best month for swimming (with the highest average sea temperature) is August (74°F).
The coldest month (with the lowest average sea temperature) is February (39.7°F).

Average daylight in August - Islip, NY
  • Average daylight in August: 13.7h

The month with the longest days is June (Average daylight: 15.1h).
The month with shortest days is December (Average daylight: 9.3h).

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