Climate Overview
The climate in La Mesa is hot. The average annual temperature is 26°C and approximately 2381mm of precipitation falls per year. September is the wettest month, receiving around 305mm of rainfall. La Mesa sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
La Mesa has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is April, when average highs reach 30°C and the mean temperature sits around 27°C. January is the coolest month, with minimum temperatures around 23°C and an average of 26°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.
Precipitation
La Mesa is a very wet location, receiving approximately 2381mm of precipitation annually, which averages out to around 198mm per month. The wettest month is September, averaging 305mm of rainfall. July and June also tend to see above-average precipitation. The driest month is February, with just 24mm. That's 282mm 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
La Mesa is relatively calm, with an average annual wind speed of 11km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 11km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 15km/h in winter, 12km/h in spring, 8km/h in summer, 8km/h in autumn.
Seasons
89 days until Summer
It is currently spring in La Mesa, which began on March 20, 2026. La Mesa sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in April at around 30°C, while the coldest stretch bottoms out in January near 23°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 427mm across the season with a monthly average of 142mm. Winds are generally light, averaging 12km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 899mm across the season with a monthly average of 300mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 23 to 30°C. Rainfall is heavy, totalling around 881mm across the season with a monthly average of 294mm. Winds are generally light, averaging 8km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 23 to 30°C. Precipitation is moderate at around 174mm for the season, averaging 58mm per month. Winds are moderate at around 15km/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 La Mesa 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.
