Jacó Weather in January
January in Jacó brings high temperatures, with daytime highs of 29°C (84°F) and nights around 25°C (77°F). Quite a bit of rainfall is expected, around 77 mm (3 in), so pack an umbrella.
Rainfall in Jacó in January
Typically, you can expect about 10 days of rain this month, with 77 mm (3 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Jacó in January
Jacó in January has perfect weather. Days reach 29°C (84°F) and nights cool to 25°C (77°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. 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 Jacó in January
Enjoy a sunny month with about 264 hours of sunshine, the clear skies make Jacó even more beautiful.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Jacó.
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 Jacó's climate page.
Jacó Temperature in January
Min Temperature
25°C (77°F)
Max Temperature
29°C (84°F)
Chance of Rain
33%
Precipitation
77 mm (3 in)
Rainy days
10 days
Sunshine
264 hours *
Percentage Sunshine
*
Daily Historical Temperatures
46-year average (1976-2026)
Based on our historical records, temperatures in Jacó typically stay consistent throughout January, with daily highs averaging around 29°C (84°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in January
Daily Historical Precipitation
46-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Jacó in January
Browse day-by-day weather records for Jacó spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Jacó historical weather extremes in January
According to our 28 years of weather records for Jacó, the following extremes were recorded between 1997 and 2025.
- On January 25, 2000, temperatures climbed to 31°C (88°F), marking the warmest January day on record.
- On January 15, 2000, Jacó saw its coldest January day with temperatures maxing out at 20°C (68°F).
- The lowest overnight temperature recorded in January was 13°C (55°F) (January 11, 1997).
- The heaviest January precipitation occurred on January 31, 2004, when 52 mm (2 in) of precipitation fell.
Best Places in Costa Rica in January
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 January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Jacó in January
Warm temperatures in January make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Jacó in January
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 Jacó's climate page.
See the full Jacó climate overview or explore weather in Costa Rica.
