May weather forecastCaucaia, Brazil
May
Weather in May
The last month of the autumn, May, is another warm month in Caucaia, Brazil, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 24.8°C (76.6°F).Temperature
May's onset records a minor alteration in the average high-temperature to a moderately hot 29.9°C (85.8°F) from April's 30°C (86°F). Throughout May, a steady low-temperature average of 24.8°C (76.6°F) is noted.Heat index
May's average heat index is evaluated at a sweltering 37°C (98.6°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
April and May, with an average relative humidity of 79%, are the most humid months.Rainfall
In Caucaia, during May, the rain falls for 25.6 days and regularly aggregates up to 128mm (5.04") of precipitation. Throughout the year, in Caucaia, there are 225.8 rainfall days, and 890mm (35.04") of precipitation is accumulated.Sea temperature
In Caucaia, in May, the average water temperature is 28.6°C (83.5°F).Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.
Daylight
In Caucaia, the average length of the day in May is 11h and 57min.On the first day of May in Caucaia, sunrise is at 05:32 and sunset at 17:31. On the last day of the month, sunrise is at 05:34 and sunset at 17:30 -03.
Sunshine
In May, the average sunshine in Caucaia is 7.8h.UV index
January, February, May through December, with an average maximum UV index of 7, are months with the highest UV index in Caucaia. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 7 in May translates into this advice:
Shun overexposure. Protection from sun ravages is indispensable. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing. Stay aware! UV radiation is magnified when reflecting off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Caucaia, Brazil
- Average high temperature in May: 29.9°C
The warmest months (with the highest average high temperature) are October, November and December (30.4°C).
The month with the lowest average high temperature is July (29.5°C).
- Average low temperature in May: 24.8°C
The month with the highest average low temperature is December (25.6°C).
The coldest month (with the lowest average low temperature) is July (23.5°C).
Average pressure in May
Caucaia, Brazil
- Average pressure in May: 1011.9mbar
The month with the highest atmospheric pressure is July (1013.8mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in May
Caucaia, Brazil
- Average wind speed in May: 16.5km/h
The windiest month (with the highest average wind speed) is September (25.2km/h).
The calmest month (with the lowest average wind speed) is April (14.5km/h).
Average humidity in May
Caucaia, Brazil
- Average humidity in May: 79%
The months with the highest relative humidity are April and May (79%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in May
Caucaia, Brazil
- Average rainfall in May: 128mm
The wettest month (with the highest rainfall) is April (180mm).
The driest months (with the least rainfall) are September and October (5mm).
Average rainfall days in May
Caucaia, Brazil
- Average rainfall days in May: 25.6 days
The month with the highest number of rainy days is April (28 days).
The month with the least rainy days is September (7.4 days).
Average sea temperature in May
Caucaia, Brazil
- Average sea temperature in May: 28.6°C
The best month for swimming (with the highest average sea temperature) is April (28.9°C).
The coldest month (with the lowest average sea temperature) is September (26.6°C).
Average daylight in May /
Average sunshine in May
Caucaia, Brazil
- Average daylight in May: 11h and 54min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in May: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 7h and 30min).
Average sunshine days in May
Caucaia, Brazil
- Average sunshine days in May: 3.1 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is April (1.2 days).
Average UV index in May
Caucaia, Brazil
- Average UV index in May: 7
The months with the highest UV index are January, February, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are March and April (UV index 6).
Average cloud cover in May
Caucaia, Brazil
- Average cloud cover in May: 38
The months with the most cloud cover are March and April (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in May
Caucaia, Brazil
- 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).





