Annual average weather for United States

Best
Best
Best
Best
Tan
Tan
Tan
Tan
Tan
Tan
Tan
Sea
17°
 
Sea
17°
 
Sea
17°
 
Sea
18°
 
Sea
20°
Swim
Sea
22°
Swim
Sea
23°
Swim
Sea
24°
Swim
Sea
23°
Swim
Sea
21°
Swim
Sea
20°
Swim
Sea
18°
 

When is the best time to visit United States?

The best months to visit United States are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from June to September when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between June and October when the sea temperature is above the average 20°C (68°F) which is comfortable for swimming though some may prefer warmer water.

Can you sunbathe in United States year round?

No, you can't sunbathe in United States all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

The weather is best for sunbathing in the months from June to September when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in United States year round?

No, you can't swim in United States all year round.

The warmest sea water temperatures in United States are found in August when they peak at 24°C (74°F) and lowest in March when they dip to 17°C (62°F).

The sea temperature is above average for swimming between June and October when the sea temperature is above 20°C (68°F) which is comfortable for swimming though some may prefer warmer water.

For very comfortable swimming conditions try swimming in the months from July to September when the sea temperature is above 22°C (72°F)

More info about the annual sea temperatures

When is the hottest month in United States?

The hottest month in United States is August when the average maximum temperature is hot 27°C (81°F), average temperature is 23°C (74°F) and average minimum temperature is 19°C (67°F).

More info about the annual temperatures and sunshine.

When is the coldest month in United States?

The coolest month in United States is January when the average maximum temperature is 18°C (64°F), average temperature is 13°C (56°F) and average minimum temperature is 9°C (48°F).

More info about the annual temperatures and sunshine

When is the sunniest month in United States?

The sunniest days in United States are in July which has the most hours of sunshine per day with an average of 9.1 hours of sunshine per day. July is sunny but overcast at times with long bright days.

More info about the annual sunshine.

When is the least sunny month in United States?

December has the least sunshine with an average of 5.8 hours of sunshine per day. December is quite sunny but with occasional periods of cloudy and overcast skies.

More info about the annual sunshine.

When is the driest month in United States?

The driest month in United States is May with 6.2cm (2.4inches) of rain and the least days of rain with 9.6 days with some rain, a quite rainy time to visit the beach.

More info about the annual rainfall

When is the wettest month in United States?

The wettest month in United States is December with 10.4cm (4.1inches) of rain and the most days of rain with 12.4 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in United States?

The coldest sea water temperatures in United States are found in March when they dip to 17°C (62°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.

More info about the annual sea temperatures.

When is the sea the warmest in United States?

The warmest sea water temperatures in United States are found in August when they peak at 24°C (74°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the most humid month in United States?

The most humid month in United States is August with a dew point (an indicator of humidity) of 19°C (67°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

More info about the annual humidity.

When is the least humid month in United States?

The least humid month in United States is January with a dew point of 10°C (51°F) which is very comfortable.

More info about the annual humidity.

When is the windiest month in United States?

The most windy month in United States is April when the average maximum windspeed is 28KM/H (17MPH) and the average wind speed is 13KM/H (8MPH).

More info about the annual wind conditions.

Annual Temperature for United States

The hottest month in United States is August when the average maximum temperature is 27°C (81°F), average temperature is 23°C (74°F) and average minimum temperature is 19°C (67°F).

The coolest month in United States is January when the average maximum temperature is 18°C (18°F), average temperature is 13°C (56°F) and average minimum temperature is 9°C (48°F).

Annual Sunshine for United States

The longest days in United States are in June, with an average of 14.3 hours of daylight per day. December has the shortest days with an average of 10 hours of daylight per day.

The sunniest days in United States are in July which has the most hours of sunshine per day with an average of 9.1 hours of sunshine per day, making it sunny but overcast at times with long bright days.

December has the least sunshine with an average of 5.8 hours of sunshine per day, making it quite sunny but with occasional periods of cloudy and overcast skies.

The ultraviolet index is the highest in July when it reaches 11.5 and lowest in December when it reaches 3.8.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for United States

The warmest sea water temperatures in United States are found in August when they peak at 24°C (74°F) and lowest in March when they dip to 17°C (62°F).

The sea is best for swimming between June and October when the temperature is above 20°C (68°F) which is comfortable for swimming though some may prefer warmer water.

Annual Rainfall for United States

The wettest month in United States is December with 10.4cm (4.1inches) of rain and the most days of rain with 12.4 days with some rain, a pretty wet time to visit the beach.

The driest month in United States is May with 6.2cm (2.4inches) of rain and the least days of rain with 9.6 days with some rain, a quite rainy time to visit the beach.

Annual Humidity for United States

The most humid month in United States is August with a dew point (an indicator of humidity) of 19°C (67°F) which is somewhat uncomfortable for most people in cities but fine on a beach.

The least humid month in United States is January with a dew point of 10°C (51°F) which is very comfortable.

Annual Wind Speed for United States

The most windy month in United States is April when the average maximum windspeed is 28KM/H (17MPH) and the average wind speed is 13KM/H (8MPH).

The least windy month in United States is October when the average maximum windspeed is 25KM/H (15MPH) and the average wind speed is 11KM/H (7MPH).

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