May weather forecastAlcatraz, Cape Verde
May
Weather in May
May heralds the arrival of the warm season in Alcatraz, with the city experiencing a subtle rise in both temperature and humidity. Despite receiving slightly less rainfall than April, the city radiates under the sunshine. The longer daylight hours provide residents and tourists with numerous opportunities for outdoor activities. May is indeed a significant month in the year for Alcatraz's delightful tropical weather.Temperature
Upon the beginning of May, Alcatraz's high-temperatures register at a still warm 24.8°C (76.6°F), closely mirroring the preceding month. Alcatraz, in the month of May, notes an average low temperature of 22.2°C (72°F), indicating a small decrease from the daytime highs.Humidity
In May, the average relative humidity in Alcatraz is 77%.Rainfall
January, March and May are months with the least rain when the rain falls for 1.3 days and typically aggregates up to 1mm (0.04") of rain.Daylight
In May, the average length of the day is 12h and 50min.On the first day of May in Alcatraz, sunrise is at 06:08 and sunset at 18:50. On the last day of the month, sunrise is at 06:01 and sunset at 18:59 -01.
Sunshine
May has the most sunshine of the year, with an average of 9.9h of sunshine.UV index
The months with the lowest UV index are January through July and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alcatraz, Cape Verde
- Average high temperature in May: 24.8°C
The warmest month (with the highest average high temperature) is October (28.4°C).
The months with the lowest average high temperature are February and March (23.7°C).
- Average low temperature in May: 22.2°C
The months with the highest average low temperature are September and October (25.8°C).
The coldest month (with the lowest average low temperature) is February (20.9°C).
Average pressure in May
Alcatraz, Cape Verde
- Average pressure in May: 1014.3mbar
The month with the highest atmospheric pressure is January (1015.2mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).
Average wind speed in May
Alcatraz, Cape Verde
- Average wind speed in May: 22.2km/h
The windiest month (with the highest average wind speed) is February (25.8km/h).
The calmest month (with the lowest average wind speed) is August (14km/h).
Average humidity in May
Alcatraz, Cape Verde
- Average humidity in May: 77%
The months with the highest relative humidity are June, July, August and September (79%).
The month with the lowest relative humidity is January (69%).
Average rainfall in May
Alcatraz, Cape Verde
- Average rainfall in May: 1mm
The wettest month (with the highest rainfall) is September (50mm).
The driest months (with the least rainfall) are January, March and May (1mm).
Average rainfall days in May
Alcatraz, Cape Verde
- Average rainfall days in May: 1.3 days
The month with the highest number of rainy days is September (13.1 days).
The month with the least rainy days is January (0.7 days).
Average daylight in May /
Average sunshine in May
Alcatraz, Cape Verde
- Average daylight in May: 12h and 48min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 12min).
- Average sunshine in May: 9h and 54min
The month with the most sunshine is May (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 0min).
Average sunshine days in May
Alcatraz, Cape Verde
- Average sunshine days in May: 29.3 days
The months with the most sunshine days are January and May (29.3 days).
The month with the least sunshine days is September (13.1 days).
Average UV index in May
Alcatraz, Cape Verde
- Average UV index in May: 6
The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July and December (UV index 6).
Average cloud cover in May
Alcatraz, Cape Verde
- Average cloud cover in May: 13
The month with the most cloud cover is August (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 13).
Average visibility in May
Alcatraz, Cape Verde
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





