Carrillo Temperature by Month
The average annual maximum temperature in Carrillo, Guanacaste, Costa Rica is 30°C (86°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Carrillo compares to cities worldwide.
Carrillo Monthly Temperatures
With little seasonal fluctuation, Carrillo offers a predictable and steady climate. Maximum daytime temperatures reach a very warm 32°C (90°F) in March and a comfortable 29°C (84°F) in November. At night, lows range from 24°C (75°F) to 24°C (75°F) throughout the year.
The chart below illustrates the average maximum day and minimum night temperatures in Carrillo by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. March, the city's warmest month, sees 282 hours of sunshine.
The chart below shows the average temperature throughout the year:
Historical Carrillo Temperatures: 1976-2026
Browse day-by-day temperature records for Carrillo spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Carrillo vs Costa Rica
The map below shows the annual temperature across Costa Rica. You can also select individual months if you want to compare a specific time of year.
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Carrillo vs World: Temperature Compared
Carrillo'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:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Carrillo's weather — including monthly rainfall, sunshine hours, and humidity — visit our Carrillo climate page.
