May weather forecast and climate
Big Coppitt Key, FL

The last month of the spring, May, is another warm month in Big Coppitt Key, Florida, with temperature in the range of an average high of 80.2°F (26.8°C) and an average low of 78.3°F (25.7°C).

Temperature

In Big Coppitt Key, the average high-temperature is practically the same as in April - a still warm 80.2°F (26.8°C). In May, the average low-temperature is 78.3°F (25.7°C).

Humidity

The average relative humidity in May is 77%.

Rainfall

In May, in Big Coppitt Key, the rain falls for 13.5 days. Throughout May, 2.28" (58mm) of precipitation is accumulated. In Big Coppitt Key, during the entire year, the rain falls for 171.1 days and collects up to 21.54" (547mm) of precipitation.

Ocean temperature

In Big Coppitt Key, the average seawater temperature is 80.8°F (27.1°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In May, the average length of the day in Big Coppitt Key is 13.3h.

Sunshine

In Big Coppitt Key, the average sunshine is 11h.

UV index

April through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in May in Big Coppitt Key?

In May, in Big Coppitt Key, Florida, the average high-temperature is 80.2°F (26.8°C), and the average low-temperature is 78.3°F (25.7°C).

What is the average humidity in May in Big Coppitt Key?

In Big Coppitt Key, the average relative humidity in May is 77%.

How many days does it rain in May in Big Coppitt Key?

In Big Coppitt Key, in May, it is raining for 13.5 days, with typically 2.28" (58mm) of accumulated precipitation.

What is the ocean temperature in May in Big Coppitt Key?

In Big Coppitt Key, Florida, the average seawater temperature in May is 80.8°F (27.1°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Big Coppitt Key have in May?

In Big Coppitt Key, Florida, the average length of the day in May is 13.3h.

How many hours of sunshine does Big Coppitt Key have in May?

In Big Coppitt Key, Florida, the average sunshine in May is 11h.

What is the month with the highest UV index in Big Coppitt Key?

Months with the highest UV index are April through October, with an average maximum UV index of 7.

What is the UV index reading in May in Big Coppitt Key?

In Big Coppitt Key, Florida, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.
Average temperature in May - Big Coppitt Key, FL
  • Average high temperature in May: 80.2°F

The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).

  • Average low temperature in May: 78.3°F

The month with the highest average low temperature is August (83.1°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).

Average pressure in May - Big Coppitt Key, FL
  • Average pressure in May: 29.99"

The month with the highest atmospheric pressure is January (30.09").
Months with the lowest atmospheric pressure are September and October (29.93").

Average wind speed in May - Big Coppitt Key, FL
  • Average wind speed in May: 12.2mph

The windiest month (with the highest average wind speed) is November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.4mph).

Average humidity in May - Big Coppitt Key, FL
  • Average humidity in May: 77%

The month with the highest relative humidity is February (78%).
Months with the lowest relative humidity are July, August and September (74%).

Average rainfall in May - Big Coppitt Key, FL
  • Average rainfall in May: 2.28"

The wettest month (with the highest rainfall) is September (3.54").
The driest month (with the least rainfall) is March (0.43").

Average rainfall days in May - Big Coppitt Key, FL
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is September (20.8 days).
The month with the least rainy days is March (9.4 days).

Average sea temperature in May - Big Coppitt Key, FL
  • Average sea temperature in May: 80.7°F

The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).

Average daylight in May / Average sunshine in May - Big Coppitt Key, FL
  • Average daylight in May: 13.3h

The month with the longest days is June (Average daylight: 13.7h).
The month with the shortest days is December (Average daylight: 10.6h).

  • Average sunshine in May: 11h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.5h).

Average sunshine days in May - Big Coppitt Key, FL
  • Average sunshine days in May: 13.8 days

The month with the most sunshine days is March (19.6 days).
The month with the least sunshine days is September (6.2 days).

Average UV index in May - Big Coppitt Key, FL
  • Average UV index in May: 7

Months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).

Average cloud cover in May - Big Coppitt Key, FL
  • Average cloud cover in May: 25

The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).

Average visibility in May - Big Coppitt Key, FL
  • Average visibility in May: 6mi

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