April weather forecast
Japomirim, Brazil

April, like March, in Japomirim, Brazil, is another warm autumn month, with an average temperature fluctuating between 29.3°C (84.7°F) and 19.3°C (66.7°F).

Temperature

With the arrival of April, Japomirim's average high-temperature registers at a warm 29.3°C (84.7°F), indicating a subtle variation from the previous month. Nighttime temperatures in April average to a refreshing 19.3°C (66.7°F).

Heat index

During April, the heat index is calculated to be a sweltering 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in April in Japomirim is 85%.

Rainfall

In Japomirim, Brazil, during April, the rain falls for 20.6 days and regularly aggregates up to 59mm (2.32") of precipitation. Throughout the year, in Japomirim, Brazil, there are 241.8 rainfall days, and 524mm (20.63") of precipitation is accumulated.

Daylight

In April, the average length of the day in Japomirim is 11h and 47min.
On the first day of the month, sunrise is at 05:44 and sunset at 17:41. On the last day of April, sunrise is at 05:48 and sunset at 17:24 -03.

Sunshine

The average sunshine in April in Japomirim is 5.3h.

UV index

The months with the highest UV index in Japomirim are January through May, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 6 during April leads to these instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.