San Buenaventura Temperature by Month

The average annual maximum temperature in San Buenaventura, Costa Rica is 28°C (82°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how San Buenaventura compares to cities worldwide.

With little seasonal fluctuation, San Buenaventura offers a predictable and steady climate. Maximum daytime temperatures reach a comfortable 30°C (86°F) in March and a comfortable 28°C (82°F) in November. At night, lows range from 22°C (72°F) to 21°C (70°F) throughout the year.

The chart below illustrates the average maximum day and minimum night temperatures in San Buenaventura by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.

The chart below shows the average temperature throughout the year:

San Buenaventura's average annual maximum temperature is 28°C (82°F). To put that in context, here's how it compares to a few well-known destinations:

Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.

Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on San Buenaventura's weather, including monthly rainfall, sunshine hours, and humidity, visit our San Buenaventura climate page.