January weather forecast
Tamarindo, Costa Rica

January in Tamarindo, Costa Rica is predominantly lush and sunny. The scant rainfall of 3mm (0.12") makes this a relatively dry month with few rainy days. Following a trend from the previous months, it welcomes with ample sunlight facilitating inviting weather for outdoor activities. The persistence of sunny days helps with warming the sea's surface temperature making the beach activities pleasurable. As the month progresses, a gradual increase in temperature is detected indicating a transition towards warmer months.

Temperature

As Tamarindo steps into January, the average high-temperature holds at a still hot 32°C (89.6°F), hinting at a minor fluctuation from the prior month. January witnesses an average low-temperature hovering around a moderately hot 23°C (73.4°F).

Rainfall

In January, the rain falls for 7 days. Throughout January, 3mm (0.12") of precipitation is accumulated. Throughout the year, in Tamarindo, there are 171 rainfall days, and 1853mm (72.95") of precipitation is accumulated.

Sea temperature

January through March and December, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
Note: For swimming, diving, or other water activities, temperatures from 25°C (77°F) to 29°C (84.2°F) provide the most enjoyable experience for extended periods without discomfort.

Daylight

In Tamarindo, the average length of the day in January is 11h and 36min.
On the first day of January, sunrise is at 06:00 and sunset at 17:32. On the last day of the month, sunrise is at 06:06 and sunset at 17:47 CST.

Sunshine

January through April, with an average of 8h of sunshine, are months with the most sunshine.

UV index

In January, the average daily maximum UV index is 11. A UV Index estimate of 11, and higher, represents an extreme threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The average daily UV index of 11 in January transforms into the following instructions:
Practice all-important precautions. Light skin people may get burned in less than 5 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Directly after swimming or an outdoor workout, generously apply and reapply a broad-spectrum SPF 30+ sunscreen. Take note! Sand and water reflections strengthen the Sun's UV exposure.