May weather forecastManaus, Brazil

Weather in May

May presents a gradual transition in weather patterns in Manaus, Brazil, with an upturn in sunshine hours to 4.8 per day. It is slightly drier than the preceding months but continues to exhibit a tropical climate. The city springs into a vibrant hub of recreational activities. While the climate remains warm and humid, it is reasonably more comfortable than in the peak rainy period. Cultural festivals taking place during this month add color to the warmth of May.

Temperature

Manaus observes a minor difference in average high-temperatures between April's 30.7°C (87.3°F) and May's 30.6°C (87.1°F). May sees the temperature falling to a mean low of 23.3°C (73.9°F).

Heat index

For most parts of May, the heat index is calculated to be a blistering 42°C (107.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In May, the average relative humidity is 87%.

Rainfall

In May, in Manaus, the rain falls for 17 days. Throughout May, 279mm (10.98") of precipitation is accumulated. In Manaus, during the entire year, the rain falls for 160 days and collects up to 2307mm (90.83") of precipitation.

Daylight

In May, the average length of the day in Manaus is 11h and 59min.
On the first day of May in Manaus, sunrise is at 05:57 and sunset at 17:57. On the last day of the month, sunrise is at 05:59 and sunset at 17:56 -04.

Sunshine

The average sunshine in May is 4.8h.

UV index

January through May, August through December, with an average maximum UV index of 12, are months with the highest UV index in Manaus. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a regular UV index of 12 translates into these guidelines:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Following every swim or outdoor workout, a sunscreen with an SPF of not less than 30 should be liberally applied and re-applied frequently, even on overcast days.