Honiara
Solomon Islands
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Honiara, Solomon Islands

A tropical white sand beach in Honiara, in the glorious Solomon Islands, with palm trees and shrubs along the edge
A tropical white sand beach in Honiara, in the glorious Solomon Islands, with palm trees and shrubs along the edge
December, the first month of the summer, in Honiara, is still a tropical month, with average temperature varying between 23°C (73.4°F) and 31°C (87.8°F).

Temperature

January, February, April, May, October through December, with an average high-temperature of 31°C (87.8°F), are the warmest months.

Rainfall

In Honiara, it is raining for 18 days, with typically 226mm (8.9") of accumulated precipitation. Throughout the year, in Honiara, Solomon Islands, there are 196 rainfall days, and 2171mm (85.5") of precipitation is accumulated.

Sea temperature

In Honiara, Solomon Islands, the average seawater temperature is 30.2°C (86.4°F). 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

With an average of 12.7h of daylight, December has the longest days of the year.

Sunshine

January, March through June, August through December, with an average of 6h of sunshine, are months with the most sunshine.

UV index

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index in Honiara. A UV Index of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 12 transform into the following instructions:
Take all necessary precautions, as unprotected skin can burn in minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the warmest months in Honiara?

Warmest months in Honiara, Solomon Islands, are January, February, April, May, October through December, with an average high-temperature of 31°C (87.8°F).

What is the temperature in December in Honiara?

In December, the average high-temperature is 31°C (87.8°F), and the average low-temperature is 23°C (73.4°F).

How much does it rain in Honiara in December?

In Honiara, in December, it is raining for 18 days, with typically 226mm (8.9") of accumulated precipitation.

What is the sea water temperature in December in Honiara?

In Honiara, the average seawater temperature in December is 30.2°C (86.4°F). 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.

When are the longest days in Honiara?

December has the longest days of the year in Honiara, Solomon Islands, with an average of 12.7h of daylight.

What is the average length of the day in December in Honiara?

The average length of the day in December in Honiara is 12.7h.

What is the month with the most sunshine in Honiara?

Months with the most sunshine in Honiara, Solomon Islands, are January, March through June, August through December, with an average of 6h of sunshine.

How long on average sun shines in December in Honiara?

In Honiara, Solomon Islands, the average sunshine in December is 6h.

What are the months with the highest UV index in Honiara?

January through April, August through December, with an average maximum UV index of 12, are months with the highest UV index in Honiara.

What is the UV index intensity in December in Honiara?

In December, the average daily maximum UV index in Honiara, Solomon Islands, is 12. A UV Index value of 11, and more, symbolizes an extreme health threat from the exposure to the Sun's UV radiation.
Average temperature in December - Honiara, Solomon Islands
  • Average high temperature in December: 31°C

Warmest months (with the highest average high temperature) are January, February, April, May, October, November and December (31°C).
Months with the lowest average high temperature are July and August (29°C).

  • Average low temperature in December: 23°C

Months with the highest average low temperature are January, February, March, April, May, October, November and December (23°C).
Coldest months (with the lowest average low temperature) are June, July, August and September (22°C).

Average rainfall in December - Honiara, Solomon Islands
  • Average rainfall in December: 226mm

The wettest month (with the highest rainfall) is March (358mm).
The driest month (with the lowest rainfall) is August (91mm).

Average rainfall days in December - Honiara, Solomon Islands
  • Average rainfall days in December: 18 days

The month with the highest number of rainy days is March (22 days).
Months with the lowest number of rainy days are June and August (13 days).

Average sea temperature in December - Honiara, Solomon Islands
  • Average sea temperature in December: 30.2°C

The best month for swimming (with the highest average sea temperature) is April (30.3°C).
The coldest month (with the lowest average sea temperature) is August (28.6°C).

Average daylight in December / Average sunshine in December - Honiara, Solomon Islands
  • Average daylight in December: 12.7h

The month with the longest days is December (Average daylight: 12.7h).
Months with shortest days are June and July (Average daylight: 11.6h).

  • Average sunshine in December: 6h

Months with most sunshine are January, March, April, May, June, August, September, October, November and December (Average sunshine: 6h).
Months with least sunshine are February and July (Average sunshine: 5).

Average UV index in December - Honiara, Solomon Islands
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The month with the lowest UV index is June (UV index 9).