May weather forecastBarcarena, Brazil
May
Weather in May
May, the last month of the autumn in Barcarena, is a hot month, with an average temperature fluctuating between 30.5°C (86.9°F) and 23.4°C (74.1°F).Temperature
The shift into May reveals an average high-temperature of a tropical 30.5°C (86.9°F), closely mirroring April's climate. Barcarena sees an average low-temperature of 23.4°C (74.1°F) during May.Heat index
The heat index in May is estimated at a scorching 42°C (107.6°F). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', joins air temperature with relative humidity to produce a temperature perception for humans. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In Barcarena, the average relative humidity in May is 88%.Rainfall
In May, the rain falls for 26.6 days. Throughout May, 175mm (6.89") of precipitation is accumulated. In Barcarena, Brazil, during the entire year, the rain falls for 283.5 days and collects up to 1348mm (53.07") of precipitation.Sea temperature
January, March and May, with an average sea temperature of 28.3°C (82.9°F), are months with the warmest seawater in Barcarena.Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Daylight
The average length of the day in May in Barcarena is 12h and 3min.On the first day of May in Barcarena, sunrise is at 06:09 and sunset at 18:13. On the last day of the month, sunrise is at 06:11 and sunset at 18:13 -03.
Sunshine
The average sunshine in May in Barcarena is 7.7h.UV index
January through March, May through December, with an average maximum UV index of 7, are months with the highest UV index in Barcarena. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 7 during May leads to these instructions:
Deflect overexposure. Sun protection is a necessity. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Barcarena, Brazil
- Average high temperature in May: 30.5°C
The warmest months (with the highest average high temperature) are October and November (33.7°C).
The month with the lowest average high temperature is March (29.8°C).
- Average low temperature in May: 23.4°C
The month with the highest average low temperature is November (24.2°C).
The coldest month (with the lowest average low temperature) is July (22.5°C).
Average pressure in May
Barcarena, Brazil
- Average pressure in May: 1011.5mbar
The month with the highest atmospheric pressure is July (1012.7mbar).
The month with the lowest atmospheric pressure is November (1009.1mbar).
Average wind speed in May
Barcarena, Brazil
- Average wind speed in May: 6km/h
The windiest months (with the highest average wind speed) are October and November (9.3km/h).
The calmest month (with the lowest average wind speed) is April (5.9km/h).
Average humidity in May
Barcarena, Brazil
- Average humidity in May: 88%
The months with the highest relative humidity are March and April (89%).
The months with the lowest relative humidity are October and November (72%).
Average rainfall in May
Barcarena, Brazil
- Average rainfall in May: 175mm
The wettest month (with the highest rainfall) is April (201mm).
The driest month (with the least rainfall) is September (36mm).
Average rainfall days in May
Barcarena, Brazil
- Average rainfall days in May: 26.6 days
The month with the highest number of rainy days is March (27.6 days).
The month with the least rainy days is August (18.2 days).
Average sea temperature in May
Barcarena, Brazil
- Average sea temperature in May: 28.3°C
The best months for swimming (with the highest average sea temperature) are January, March and May (28.3°C).
The coldest months (with the lowest average sea temperature) are September and October (27.8°C).
Average daylight in May /
Average sunshine in May
Barcarena, Brazil
- Average daylight in May: 12h and 6min
The month with the longest days is December (Average daylight: 12h and 12min).
The month with the shortest days is June (Average daylight: 12h and 0min).
- Average sunshine in May: 7h and 42min
The month with the most sunshine is October (Average sunshine: 10h and 6min).
The month with the least sunshine is March (Average sunshine: 6h and 24min).
Average sunshine days in May
Barcarena, Brazil
- Average sunshine days in May: 3.6 days
The month with the most sunshine days is August (10.6 days).
The month with the least sunshine days is February (2.6 days).
Average UV index in May
Barcarena, Brazil
- Average UV index in May: 7
The months with the highest UV index are January, February, March, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is April (UV index 6).
Average cloud cover in May
Barcarena, Brazil
- Average cloud cover in May: 55
The month with the most cloud cover is April (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in May
Barcarena, Brazil
- Average visibility in May: 7km
The months with the highest visibility are October and November (10km).
The month with the lowest visibility is April (6km).





