Nosara Temperature by Month

Nosara, Guanacaste, Costa Rica has a consistently very warm climate year-round, with daytime highs averaging 30°C (86°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

The temperature in Nosara remains steady throughout the year, providing a consistently very warm climate. Maximum daytime temperatures range from a very warm 33°C (91°F) in March to a comfortable 29°C (84°F) in October. Nights are mild year-round, with lows ranging from 25°C (77°F) in March to 24°C (75°F) in October.

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak.

The chart below shows the average temperature throughout the year:

Nosara's average annual maximum temperature is 30°C (86°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Nosara this rarely lasts long on the ground.

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