December weather forecast
Solomon Islands

December in the Solomon Islands marks the beginning of the peak wet season. Average rainfall in December ranges from 250mm (9.84") to 300mm (11.81"), signifying a further increase from November. These rains intensify the lushness of the islands' tropical landscapes, making the scenery particularly verdant.

Despite the increased rainfall, temperature patterns remain stable, mirroring those of November. Daytime highs reach around 31°C (87.8°F), while nighttime lows hover around 24°C (75.2°F). The combination of increased rainfall and steady temperatures contributes to a distinctly humid climate, creating the rich, tropical atmosphere characteristic of the islands during this time of the year.

In Honiara, the capital city, the weather conditions in December are similar, with high rainfall and consistent temperatures. The risk of cyclones increases slightly during this month, marking the start of the cyclone season. However, despite these risks, the weather largely remains predictable, contributing to the islands' appeal as a year-round destination.

Moving from December into January, the islands continue to experience high rainfall and stable temperatures. This trend marks the continuation of the wet season, which is characterized by its lush landscapes and vibrant natural beauty. Despite the increased rainfall, the Solomon Islands' appeal remains strong, offering visitors unique experiences amidst its abundant tropical flora and fauna.

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• Honiara - December »
  January through March, June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Honiara, Solomon Islands. With an average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 24°C (75.2°F), December is the warmest month in Honiara, Solomon Islands.
• Gizo - December »
  The months with the highest UV index in Gizo, Solomon Islands, are January through April, August through December, with an average maximum UV index of 12. The months with the least sunshine in Gizo are February, April, July and December, with an average of 5h of sunshine.
• Auki - December »
  The months with the highest UV index in Auki are January through April, August through December, with an average maximum UV index of 12. January and December, with an average high-temperature of 30°C (86°F), are marked as the warmest months in Auki, Solomon Islands.
• Buala - December »
  With an average sea temperature of 30.3°C (86.5°F), December is the month with the warmest seawater in Buala, Solomon Islands. The months with the lowest UV index in Buala are January through March, October and December, with an average maximum UV index of 6.
• Munda - December »
  January through April, July, August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Munda. With an average of 12h and 36min of daylight, December has the longest days of the year in Munda, Solomon Islands.
• Noro - December »
  Closing the year, December in Noro, Solomon Islands sees a slight increase in both the highest temperature and amount of sunshine hours. The month with the longest days in Noro is December, with an average of 12h and 36min of daylight.
• Rennell Island - December »
  The month with the longest days in Rennell Island is December, with an average of 12h and 48min of daylight. With an average of 12h and 48min of daylight, December has the longest days of the year in Rennell Island, Solomon Islands.
• Seghe - December »
  The months with the warmest seawater in Seghe are January through April and December, with an average sea temperature of 30°C (86°F). January through April, July, August, October through December, with an average maximum UV index of 7, are months with the highest UV index in Seghe.
• Aola - December »
  January through March, June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Aola. The months with the lowest UV index in Aola are January through March, June, August, October through December, with an average maximum UV index of 6.
• Tulagi Island - December »
  With an average of 12h and 36min of daylight, December has the longest days of the year in Tulagi Island, Solomon Islands. December has the longest days of the year in Tulagi Island with an average of 12h and 36min of daylight.
• Poroporo - December »
  January through April, November and December, with an average sea temperature of 30°C (86°F), are months with the warmest seawater in Poroporo. The months with the warmest seawater in Poroporo are January through April, November and December, with an average sea temperature of 30°C (86°F).
• Yandina - December »
  Yandina witnesses its highest temperatures in January through May, August, November and December, reaching an average of 31°C (87.8°F). On the first day of December in Yandina, sunrise is at 05:53 and sunset at 18:30.