December weather forecast
Geraldton, Australia

December in Geraldton is characteristic of full-blown summer with soaring temperatures and minimal rain. With the maximum temperature hitting 28.1°C (82.6°F), Geraldton experiences an intense heat spell. The month records the least rainfall of the year at 10mm (0.39"), reflecting arid conditions. However, an extended daylight duration of 14 hours tops the year, complimenting the festive season with abundant sunshine. As the month culminates, one can anticipate a repetition of this cycle with a gradually cooling climate in the New Year.

Temperature

Geraldton, Australia, notes an average high-temperature of a still warm 28.1°C (82.6°F) in December, displaying minor variation from November. Geraldton's average low-temperature for the month of December records at a pleasant 20.2°C (68.4°F).

Heat index

For December, the heat index is appraised at 29°C (84.2°F). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.

Humidity

In December, the average relative humidity is 59%.

Rainfall

In December, in Geraldton, the rain falls for 4.9 days. Throughout December, 10mm (0.39") of precipitation is accumulated. Throughout the year, there are 88.5 rainfall days, and 218mm (8.58") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature is 22°C (71.6°F).
Note: For someone sensitive to cold, swimming in 22°C (71.6°F) waters can be invigorating, especially when considering elements like sunshine, wind, and current air temperature. (As a reference, Olympic swimming waters are kept between 25°C (77°F) and 28°C (82.4°F).)

Daylight

The month with the longest days in Geraldton is December, with an average of 13h and 54min of daylight.
On the first day of December in Geraldton, sunrise is at 5:15 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 7:23 pm AWST.

Sunshine

In December, the average sunshine is 11.6h.

UV index

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Attention! The reflection of both water and sand can increase the intensity of UV rays.