December weather forecast
Gwaunaruu, Solomon Islands

Gwaunaruu experiences the least wind speed in December at 8.4km/h (5.2mph), bringing a serene ambiance to the island nearing the year-end. The balance between total daylight and sunshine hours is restored with both seeing a little rise from November. Rainfall volume considerably increases reaching close to the year's start, culminating the shift from the relatively drier months to wetter conditions. Pressure is the lowest in December compared to the rest of the year, signifying a change in the atmospheric conditions. Despite this, the island's overall climate remains warm and inviting, making it an ideal tropical location year-round.

Temperature

The transition into December in Gwaunaruu marks the average high-temperature at a still moderately hot 28.5°C (83.3°F), identical to November. Gwaunaruu sustains a near constant temperature throughout December, with nighttime averages of 26.1°C (79°F).

Heat index

The heat index value for December is computed to be a tropical 33°C (91.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', determines the feeling of heat when you account for the relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

January through March, November and December, with an average relative humidity of 79%, are the least humid months.

Rainfall

In Gwaunaruu, in December, during 29.3 rainfall days, 281mm (11.06") of precipitation is typically accumulated. In Gwaunaruu, during the entire year, the rain falls for 329.1 days and collects up to 2481mm (97.68") of precipitation.

Daylight

December has the longest days of the year, with an average of 12h and 36min of daylight.
On the first day of December, sunrise is at 05:48 and sunset at 18:24. On the last day of the month, sunrise is at 06:01 and sunset at 18:38 +11.

Sunshine

In Gwaunaruu, the average sunshine in December is 9.6h.

UV index

January through March, October and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 6 in December translates into this advice:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.