Weather in Honiara in December 2025
- December is usually the hottest month of the year in Honiara;
- December is usually the wettest month of the year in Honiara;
Average weather
Average temperature in Honiara in December
The expected average maximum temperature in December is +28°C with a maximum of +29°C and a minimum of +24°C.
The average maximum temperature goes up 0% by the end of the month, compared with the beginning of the month, from +28°C to +28°C.
Is Honiara warm or cold in December?
Honiara is typically warm in December.
Maximum temperatures go up compared to the previous month from +28°C to +28°C. The minimum temperature also goes up from +24°C to +25°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
December is the hottest month in Honiara, here is the comparison with other months:
Climate in Honiara in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +28°C | +28°C | ||||
| Min. temperature | ||||||
| +22°C | +22°C | +22°C | ||||
| Max. temperature | ||||||
| +33°C | +34°C | +34°C | ||||
| Rainfall | ||||||
| 253 mm | 304 mm | 315 mm | ||||
| Wind | ||||||
| 1 m/s | 1 m/s | 1 m/s | ||||
| Humidity | ||||||
| 86% | 87% | 87% | ||||
| Air pressure | ||||||
| 1009 HPa | 1008 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 1 | 1 | 1 | ||||
| Rainy days | ||||||
| 25 | 26 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as ok as in November. The temperature levels stay the same in the area of +28°C for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 253 mm to 304 mm. Humidity rises from 86% to 87%. The average wind speed doesn’t change much during December, staying around 1 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
January brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 7 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Honiara is gradually decreasing during December, going from 3 m/s to 1 m/s over the course of the month.
Rain
How was the weather last December in Honiara?
Climate Change over Years
The climate in Honiara in December has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+27°C) and the highest in 2020 (+31°C). The driest year was 1997 with only 1911 mm of rainfall, and the wettest year was 2023 with 4299 mm.
FAQ
Is December a good time to visit Honiara?
Can you sunbathe in Honiara in December?
Is Honiara rainy in December?
Is it sunny in Honiara in December?
Monthly weather in Honiara
Source of the data
For this page, we’ve looked at the typical weather in Honiara, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
