The climate in Cayo Guillermo during March can be summarized as hot, humid and reasonably dry.
March is in the spring in Cayo Guillermo and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 18°C (65°F) is normal.
|Daytime temperature||29.1°C 84.4°F|
|Nightly temperature||18.4°C 65.1°F|
|Average temperature||23.8°C 74.8°F|
|Daily sunshine||8.7 hrs|
|Avg rainfall||52 mm 2 ins|
|Rainy days||6 days|
|Sea temperature||25.4°C 77.7°F|
|Windspeed||14.9kph 9 mph|
On average March is the 4th driest month of the year in Cayo Guillermo with around 52mm 2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cayo Guillermo in March 2023.
|Hottest month:||August||32.8°C 91°F|
|Driest month:||December||40mm 1.6ins|
|Coldest month:||January||26.8°C 80.2°F|
|Wettest month:||October||183mm 7.2ins|