Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
The arrival of May brings an average high-temperature of a still warm 27.7°C (81.9°F), closely following the temperature pattern of April. In May, Calai experiences a significant drop from daily zeniths to an average nighttime temperature of 14.1°C (57.4°F).Heat index
The heat index in May is evaluated at 27°C (80.6°F). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Heat index data is primarily for areas with shade and subjected to light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In May, the average relative humidity is 40%.Rainfall
May is the last month it rains. During 0.9 rainfall days, in May, Calai aggregates 1mm (0.04") of precipitation. In Calai, during the entire year, the rain falls for 89 days and collects up to 324mm (12.76") of precipitation.Daylight
The average length of the day in May is 11h and 17min.On the first day of May, sunrise is at 05:54 and sunset at 17:21. On the last day of the month, sunrise is at 06:04 and sunset at 17:12 WAT.
Sunshine
The average sunshine in May is 9.9h.UV index
The months with the lowest UV index are May through July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 5 during May leads to these instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To guard against the harmful effects of the Sun, minimize exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the last month it rains?
How many hours of daylight does Calai have in May?
When is the sunrise / sunset in May in Calai?
How many hours of sunshine does Calai have in May?
What is the month with the lowest UV index?
What is the UV index reading in May?
Average temperature in May
Calai, Angola
- Average high temperature in May: 27.7°C
The warmest month (with the highest average high temperature) is October (36.3°C).
The month with the lowest average high temperature is June (25.4°C).
- Average low temperature in May: 14.1°C
The month with the highest average low temperature is November (21.8°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in May
Calai, Angola
- Average pressure in May: 1017.1mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is January (1009.3mbar).
Average wind speed in May
Calai, Angola
- Average wind speed in May: 9.2km/h
The windiest month (with the highest average wind speed) is September (11.1km/h).
The calmest month (with the lowest average wind speed) is December (8.2km/h).
Average humidity in May
Calai, Angola
- Average humidity in May: 40%
The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (19%).
Average rainfall in May
Calai, Angola
- Average rainfall in May: 1mm
The wettest month (with the highest rainfall) is January (74mm).
The driest months (with the least rainfall) are June, July, August and September (0mm).
Average rainfall days in May
Calai, Angola
- Average rainfall days in May: 0.9 days
The month with the highest number of rainy days is December (18.6 days).
The month with the least rainy days is August (0 days).
Average daylight in May /
Average sunshine in May
Calai, Angola
- Average daylight in May: 11h and 2min
The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is November (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 9h and 0min).
Average sunshine days in May
Calai, Angola
- Average sunshine days in May: 30 days
The months with the most sunshine days are July and August (31 days).
The month with the least sunshine days is December (10.7 days).
Average UV index in May
Calai, Angola
- Average UV index in May: 5
The months with the highest UV index are September, October and December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 5).
Average cloud cover in May
Calai, Angola
- Average cloud cover in May: 7
The month with the most cloud cover is January (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 1).
Average visibility in May
Calai, Angola
- Average visibility in May: 10km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February and March (9km).
