June weather forecast
Cayo Guillermo, Cuba

As the maiden month of summer, June carries the brunt of the season's heat in Cayo Guillermo. Keeping up with the intensified weather patterns, the UV index reaches a maximum of 12, a feature that highlights June and the following three months. Despite this, the rainfall does experience a slight dip from May's levels, although still marking a prominent presence at 160mm (6.3"). Long daylight hours coupled with unvarying sea temperatures contribute to June's unique weather experience. Shifting gears towards July, a continuation of these high-intensity weather elements is on the horizon.

Temperature

Cayo Guillermo ushers in June with an average high-temperature of a still hot 32°C (89.6°F), showing a close resemblance to the previous month. The low-temperature average for Cayo Guillermo during June stands at a moderately hot 23°C (73.4°F).

Rainfall

In June, in Cayo Guillermo, the rain falls for 15 days. Throughout June, 160mm (6.3") of precipitation is accumulated. Throughout the year, in Cayo Guillermo, there are 125 rainfall days, and 1200mm (47.24") of precipitation is accumulated.

Sea temperature

June through October, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Cayo Guillermo.
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

With an average of 13h and 30min of daylight, June has the longest days of the year.
On the first day of the month, sunrise is at 06:29 and sunset at 19:55. On the last day of June, in Cayo Guillermo, Cuba, sunrise is at 06:33 and sunset at 20:03 CDT.

Sunshine

January, February, June, September through December, with an average of 7h of sunshine, are months with the least sunshine in Cayo Guillermo, Cuba.

UV index

The months with the highest UV index are April through August, with an average maximum UV index of 12. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 12 during June leads to these advisories:
Employ all crucial safeguards, unprotected skin could burn rapidly. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. One should apply and reapply liberally a broad-spectrum sunscreen of SPF 30+ every two hours and immediately after a swim or an outdoor exercise. Be alert! The reflection of water and sand augments UV radiation intensity.