Climate Chart of Honiara, Solomon Islands

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

Monthly mean temperatures remain within a narrow range: the highest is January at 26.8 °C, while the lowest is August at 25.9 °C. These are monthly averages, not daytime highs, and do not show the temperature variation visitors may experience from day to day. The unweighted mean of the monthly temperature means is 26.3 °C; it summarizes the calendar-month averages rather than weighting them by the number of days in each month.

Rain

Mean daily rainfall is highest in December, at 13.10 mm/day, and lowest in August, at 4.35 mm/day. These are daily averages for each month, not monthly rainfall totals, and the lower average does not mean that every day is dry. Across the calendar months, the unweighted mean of those monthly daily-rainfall means is 8.14 mm/day. It provides broad context but does not indicate how often rain falls or how rainfall is distributed across individual days.

Sunshine

Mean daily sunshine reaches its highest monthly average in September, at 9.97 hours/day, and its lowest in February, at 8.29 hours/day. Sunshine duration can help describe average conditions for outdoor planning, but it is not a measure of day length or a guarantee of clear weather.

Best Travel Time Guide for Honiara, Solomon Islands: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly averages, August is the relevant option: its monthly mean temperature is 25.9 °C. This describes an average, not a forecast or a promise of cool conditions throughout the day, so check near-term forecasts when planning activities. If lower average rainfall is a priority, consider August, when mean daily rainfall is 4.35 mm/day. It is still an average and cannot guarantee rain-free days or quantify how frequently rain occurs; pack with changeable daily weather in mind.

Prepare for rain if travelling in December, the month with the highest mean daily rainfall at 13.10 mm/day; these figures are daily means, not monthly totals, so they do not describe the timing of showers on a particular visit. For outdoor sightseeing, September has the highest mean daily sunshine duration, 9.97 hours/day, while February has the lowest, 8.29 hours/day. These averages may help with broad planning, but sunshine duration is not day length and cannot promise how much sun a visitor will get on any given day.

Climate Data Overview for Honiara, Solomon Islands

Explore the comprehensive climate data for Honiara, Solomon Islands. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Honiara
• Explore the climate in Solomon Islands