The highest day temperature in January 2026 was 94°F. The lowest night temperature was 74°F. The average values for day and night temperatures during January were 89.8°F и 76.2°F respectivly.

The average sea surface temperature in January 2026 for Tamarindo was 86.4°F. The maximum and minimum values were 85.2°F and 87.8°F respectively.

Most of the days in January are sunny but you can also expect cloudy and gloomy days.

Precipitation total in January for Tamarindo is 0.1 in. It makes january one of the least rainy months of the year.

The average wind speed in January is 8.1 mph. It makes January one of the most windy months of the year for Tamarindo.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Tamarindo in January is 9.5 hours.