Climate Overview
The climate in Tulagi is hot. The average annual temperature is 28°C and approximately 4136mm of precipitation falls per year. Tulagi receives a notable amount of rainfall throughout the year, including during its driest month. Tulagi sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Tulagi has relatively stable temperatures year-round, staying within a 2°C range. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 28°C. August is the coolest month, with minimum temperatures around 27°C and an average of 27°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.
Precipitation
Tulagi is a very wet location, receiving approximately 4136mm of precipitation annually, which averages out to around 345mm per month. The wettest month is February, averaging 525mm of rainfall. January and December also tend to see above-average precipitation. The driest month is July, with just 223mm. That's 302mm less than February, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.
Wind
Tulagi is mildly breezy, with an average annual wind speed of 17km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in December, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 11km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 22km/h in winter, 17km/h in spring, 15km/h in summer, 13km/h in autumn.
Seasons
1 day until Spring
It is currently winter in Tulagi, which began on June 21, 2026. Tulagi sits near the equator, so the traditional four-season cycle is less pronounced. Temperatures remain relatively stable year-round. The warmest period peaks in January at around 29°C, while the coldest stretch bottoms out in August near 27°C. Spring is next, beginning on September 23, 2026 (1 days from now).
Spring
Temperatures range from 27 to 28°C. Rainfall is heavy, totalling around 793mm across the season with a monthly average of 264mm. Winds are moderate at around 17km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 27 to 29°C. Rainfall is heavy, totalling around 1447mm across the season with a monthly average of 482mm. Winds are moderate at around 15km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 27 to 28°C. Rainfall is heavy, totalling around 1168mm across the season with a monthly average of 389mm. Winds are generally light, averaging 13km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 27 to 28°C. Rainfall is heavy, totalling around 729mm across the season with a monthly average of 243mm. Winds are moderate at around 22km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Tulagi based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
