March Weather in Grand Isle

Last updated: March 2, 2024

The weather in Grand Isle, United States, during March is characterized by an average temperature of -5°C (24°F). Highs can soar to 9°C (48°F), while lows may dip to -21°C (-5°F). Typically, the humidity level in Grand Isle throughout March hovers around 90%.

-21°C (-5°F)

Minimum temperature

-5°C (24°F)

Average temperature

9°C (48°F)

Maximum temperature

90%

Humidity

Precipitation and Sunshine hours

In March, Grand Isle averages 77 mm (3.0 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 11 hours 56 minutes of daylight, with the sun shining for approximately 7 hours 28 minutes each day. Additionally, there is a 40% probability of sunny days during this period.

77 mm (3.0 inches)

Precipitation

10 rainy days

Rainy days

7 hours 28 minutes

Sunshine hours

40%

Chance of sun

UV Index

In March, the UV Index in Grand Isle reaches a maximum of 5, indicating a level of Moderate exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 30 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 1 2 3 4 5 5 4 3 2 1 1 0
Exposure Low Moderate Low
Time to burn 45 min 30 min 45 min

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