January Weather in Honiara, Solomon Islands

Last updated: August 31, 2025

In January, the average temperature in Honiara, Solomon Islands hovers around 25°C (78°F), with minimums dipping to 23°C (74°F) and maximums reaching 29°C (84°F). Rainfall is frequent, totaling 352 mm (13.9 in) over 23 days, contributing to a lush, vibrant atmosphere. Expect a humidity level of 78%, making the air feel warm and inviting.

January Temperature in Honiara

In January in Honiara, the average temperature is 25°C (78°F), with maximums reaching 29°C (84°F) and minimums dropping as low as 23°C (74°F). This pleasant climate makes Honiara an ideal destination for travelers looking to enjoy mild and comfortable weather.

January Weather in Honiara: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Honiara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Honiara, January typically has an average temperature of 25°C (78°F), with highs reaching up to 29°C (84°F) and lows dropping to around 23°C (74°F).

Data source: Temperature data for Honiara generated using information from the Copernicus Climate Change Service.

January Precipitation in Honiara

In Honiara in January, the precipitation amount is 352 mm (13.9 in) over the course of 23 days.

January Precipitation Trends in Honiara

The chart displays monthly precipitation patterns in Honiara, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Honiara, January typically receives around 352 mm (13.9 inches) of precipitation spread over approximately 23 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Honiara

In Honiara in January humidity is 78%. With an average temperature of 25°C (78°F), this humidity feels like walking through a warm, thick blanket, making every step feel heavier and the air noticeably sticky, which can be quite challenging for traveling.

January Average Humidity in Honiara

This chart illustrates the average monthly humidity levels in Honiara, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Honiara is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Honiara

In Honiara in January, the maximum UV index is 16, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, making it crucial to take protective measures. For detailed information, you can refer to the Hourly UV Index in Honiara.

Maximum UV Index Levels in Honiara for January

The chart shows the monthly maximum UV Index (UVI) for Honiara in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Honiara typically reaches 16, which falls under the extreme exposure category.

Data source: Honiara January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How January Weather in Honiara Compares to Other Months

Weather in Honiara varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Honiara, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Honiara, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	352 mm (13.9 inches)	78%	extreme
February Weather	25°C (78°F)	422 mm (16.6 inches)	76%	extreme
March Weather	25°C (78°F)	420 mm (16.5 inches)	76%	extreme
April Weather	25°C (77°F)	376 mm (14.8 inches)	76%	extreme
May Weather	25°C (78°F)	278 mm (10.9 inches)	76%	extreme
June Weather	25°C (77°F)	212 mm (8.4 inches)	80%	very high
July Weather	25°C (77°F)	267 mm (10.5 inches)	83%	extreme
August Weather	25°C (77°F)	232 mm (9.1 inches)	83%	extreme
September Weather	25°C (77°F)	318 mm (12.5 inches)	83%	extreme
October Weather	25°C (77°F)	301 mm (11.8 inches)	84%	extreme
November Weather	25°C (77°F)	377 mm (14.8 inches)	81%	extreme
December Weather	25°C (78°F)	443 mm (17.4 inches)	78%	extreme