April weather forecast
Cayo Guillermo, Cuba

Entering April, Cayo Guillermo witnesses further weather changes, characterized by greater rainfall and steadily climbing temperatures. Displaying a noticeable leap from the previous month, rainfall in April average at 60mm (2.36"), marking the commencement of the wet season. Drivers behind this weather shift include the island’s geographical positioning and climatological factors. The length of daylight hours also shows a progressive increase, allowing more time for outdoor activities. As April merges into May, the anticipation of more intense summer weather conditions takes root.

Temperature

With the arrival of April, Cayo Guillermo's average high-temperature registers at a hot 31°C (87.8°F), indicating a subtle variation from the previous month. Throughout April, Cayo Guillermo registers a distinct decrease from daytime highs, reaching an average low of 19°C (66.2°F).

Rainfall

In Cayo Guillermo, in April, it is raining for 5 days, with typically 60mm (2.36") of accumulated precipitation. Throughout the year, in Cayo Guillermo, there are 125 rainfall days, and 1200mm (47.24") of precipitation is accumulated.

Sea temperature

In Cayo Guillermo, the average seawater temperature in April is 26°C (78.8°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) provides warmth and pleasure, making water activities enjoyable for lengthened periods without feeling uncomfortable.

Daylight

In Cayo Guillermo, the average length of the day in April is 12h and 41min.
On the first day of April in Cayo Guillermo, Cuba, sunrise is at 07:06 and sunset at 19:30. On the last day of the month, sunrise is at 06:42 and sunset at 19:41 CDT.

Sunshine

The month with the most sunshine is April, with an average of 9h of sunshine.

UV index

April through August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 12 during April translates into these guidelines:
Enforce every key safety measure. Those with light skin might get burns in a matter of minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. 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. After a swim or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen. Attention! UV strength is notably upped by the reflection of sand and water.