August weather forecast and climate
Greenwich, CT

What is the temperature in August in Greenwich?

The average high-temperature, in August, in Greenwich, is 81°F (27.2°C), while the average low-temperature is 64°F (17.8°C).

How much does it rain in Greenwich in August?

During August, Greenwich regularly aggregates up to 4" (101.6mm) of precipitation.
Average temperature in August - Greenwich, CT
  • Average high temperature in August: 81°F

The warmest month (with the highest average high temperature) is July (83°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in August: 64°F

The month with the highest average low temperature is July (65°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average rainfall in August - Greenwich, CT
  • Average rainfall in August: 4"

Wettest months (with the highest rainfall) are March and September (4.7").
The driest month (with the lowest rainfall) is February (3.2").

Average snowfall in August - Greenwich, CT
  • Average snowfall in August: 0"

The month with the highest snowfall is February (8.3").
Months with the lowest snowfall are May, June, July, August, September and October (0").

Average sea temperature in August - Greenwich, CT
  • Average sea temperature in August: 73.1°F

The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).

Average daylight in August - Greenwich, CT
  • Average daylight in August: 13.8h

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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