June weather forecast
Fortaleza, Brazil

June in Fortaleza marks the beginning of the relatively dry period with rainfall dropping to 142mm (5.59") and less frequent rainy days. The city experiences a subtle decrease in high and low temperatures, reigning in an air of coolness. Sea temperatures fall slightly to 27.9°C (82.2°F), still suitable for an adventurous sea escapade. The UV index maintains a constant 10, a characteristic feature running persistently through Fortaleza’s climatic calendar. The charm of Fortaleza in June lies in lesser showers and more sunshine.

Temperature

June commences with an average high-temperature of a still warm 29.6°C (85.3°F), showing little deviation from May's 29.9°C (85.8°F). Fortaleza witnesses an average low-temperature of 22.8°C (73°F) throughout the month of June.

Heat index

In June, the average heat index is estimated at a fiery hot 37°C (98.6°F). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Know that the heat index computations account for shaded terrains and slight winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In June, the average relative humidity is 81%.

Rainfall

In Fortaleza, during June, the rain falls for 14 days and regularly aggregates up to 142mm (5.59") of precipitation. In Fortaleza, Brazil, during the entire year, the rain falls for 135 days and collects up to 1608mm (63.31") of precipitation.

Sea temperature

In Fortaleza, the average seawater temperature in June is 27.9°C (82.2°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

With an average of 11h and 54min of daylight, June has the shortest days of the year in Fortaleza, Brazil.
On the first day of June in Fortaleza, Brazil, sunrise is at 05:34 and sunset at 17:29. On the last day of the month, sunrise is at 05:40 and sunset at 17:35 -03.

Sunshine

In June, the average sunshine in Fortaleza is 8h.

UV index

June and July, with an average maximum UV index of 10, are months with the lowest UV index in Fortaleza. A UV Index reading of 8 to 10 represents a very high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 10 in June translates into the following recommendations:
Always be cautious. Skin and eyes can be affected swiftly without protection. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Despite the cloudy weather, sunscreen with a sun protection factor of at least 30 should be liberally applied and reapplied, including after a swim or outdoor activity. Watch out! Sand and water enhance the UV exposure you receive.