May weather forecast
Óbidos, Brazil

May, the last month of the autumn in Óbidos, is a tropical month, with an average temperature varying between 23.3°C (73.9°F) and 30.7°C (87.3°F).

Temperature

May notes an average high-temperature of a tropical 30.7°C (87.3°F), subtly differing from April's 29.8°C (85.6°F). The mean low-temperature during May nights in Óbidos is a moderately hot 23.3°C (73.9°F).

Heat index

May's average heat index is evaluated at a scorching 41°C (105.8°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. 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 hold great significance to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

In May, the average relative humidity is 84%.

Rainfall

In Óbidos, during May, the rain falls for 23.1 days and regularly aggregates up to 128mm (5.04") of precipitation. Throughout the year, there are 212.5 rainfall days, and 1026mm (40.39") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 2min.
On the first day of May, sunrise is at 06:37 and sunset at 18:40. On the last day of the month, sunrise is at 06:39 and sunset at 18:40 -03.

Sunshine

In May, the average sunshine in Óbidos is 7.8h.

UV index

In May, the average daily maximum UV index in Óbidos is 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: During May, 7 as the daily maximum UV index converts into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.