Santa Teresa Weather in December
With daytime temperatures of 29°C (84°F) and nighttime lows of 25°C (77°F), December in Santa Teresa brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 70 mm (2.8 in) falls on average.
Rainfall in Santa Teresa in December
Looking at the last 30 years, the data shows about 12 days with rain, averaging 70 mm (2.8 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Santa Teresa in December
December is a good time to be in Santa Teresa. Days are perfect, reaching 29°C (84°F), with nights around 25°C (77°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.
Sunshine in Santa Teresa in December
The month enjoys around 233 hours of sunshine, creating mostly sunny days with good weather conditions.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Santa Teresa's climate page.
Santa Teresa Temperature in December
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
39%
Precipitation
70 mm (2.8 in)
Rainy days
12 days
Sunshine
233 hours *
Percentage Sunshine
*
Daily Historical Temperatures
30-year average (1987-2025)
Based on our historical records, temperatures in Santa Teresa typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in December
Historical weather for Santa Teresa in December
Browse day-by-day weather records for Santa Teresa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santa Teresa historical weather extremes in December
Our historical data for Santa Teresa spans 2006 to 2025, revealing these weather extremes.
- Santa Teresa recorded its highest December temperature of 31°C (88°F) on December 31, 2015.
- Santa Teresa experienced its chilliest December day on December 20, 2010, reaching only 25°C (77°F).
- The lowest overnight temperature recorded in December was 22°C (72°F) (December 22, 2025).
- The wettest December day on record brought 46 mm (1.8 in) of precipitation to Santa Teresa (December 4, 2016).
Best Places in Costa Rica in December
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in December →
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What to Wear in Santa Teresa in December
Warm but pleasant conditions in Santa Teresa in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Santa Teresa in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Santa Teresa's climate page.
See the full Santa Teresa climate overview or explore weather in Costa Rica.
