April weather forecast
Darwin, Australia

April, the same as March, in Darwin, Australia, is another hot autumn month, with temperature in the range of an average low of 25.9°C (78.6°F) and an average high of 31.3°C (88.3°F).

Temperature

In April, the average high-temperature is practically the same as in March - a still tropical 31.3°C (88.3°F). In April, the average low-temperature is 25.9°C (78.6°F).

Heat index

The average heat index in April is evaluated at a sweltering 39°C (102.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'feels like', 'apparent temperature', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like pregnancy, differences in body mass, height, and shape, metabolic differences, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In Darwin, the average relative humidity in April is 71%.

Rainfall

In April, in Darwin, Australia, the rain falls for 20.7 days. Throughout April, 105mm (4.13") of precipitation is accumulated. Throughout the year, there are 191.8 rainfall days, and 1282mm (50.47") of precipitation is accumulated.

Sea temperature

In Darwin, the average water temperature is 30.3°C (86.5°F).
Note: The surface water temperatures above 30°C (86°F) are arguably considered as unpleasant for swimming, and any intense water activity, as the refreshing effect of water is missing.

Daylight

The average length of the day in April in Darwin is 11h and 50min.
On the first day of the month, sunrise is at 6:51 am and sunset at 6:50 pm. On the last day of April, in Darwin, sunrise is at 6:53 am and sunset at 6:34 pm ACST.

Sunshine

In Darwin, Australia, the average sunshine in April is 9h.

UV index

January through October and December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in April transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.