Climate Overview
The climate in Buchanan is hot. The average annual temperature is 26°C and approximately 3070mm of precipitation falls per year. Buchanan receives a notable amount of rainfall throughout the year, including during its driest month. Buchanan sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Buchanan has relatively stable temperatures year-round, staying within a 6°C range. The warmest month is March, when average highs reach 30°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 24°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.
Precipitation
Buchanan is a very wet location, receiving approximately 3070mm of precipitation annually, which averages out to around 256mm per month. The wettest month is September, averaging 497mm of rainfall. August and June also tend to see above-average precipitation. The driest month is January, with just 69mm. That's 428mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Buchanan is relatively calm, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in December, with average winds dropping to 9km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 6km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 11km/h in winter, 11km/h in spring, 13km/h in summer, 11km/h in autumn.
Seasons
90 days until Summer
It is currently spring in Buchanan, which began on March 20, 2026. Buchanan sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 30°C, while the coldest stretch bottoms out in August near 24°C. Summer is next, beginning on June 21, 2026 — 90 days from now.
Spring
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 638mm across the season with a monthly average of 213mm. Winds are generally light, averaging 11km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 28°C. Rainfall is heavy, totalling around 1187mm across the season with a monthly average of 396mm. Winds are generally light, averaging 13km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 1003mm across the season with a monthly average of 334mm. Winds are generally light, averaging 11km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 24 to 30°C. Precipitation is moderate at around 242mm for the season, averaging 81mm per month. Winds are generally light, averaging 11km/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 Buchanan 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.
