March weather forecast
Tamarindo, Costa Rica

March continues to carry the baton of pleasant weather from February. There's a minor increase in rainfall, nudging the figure upwards to 6mm (0.24"). Despite this, the majority of the month remains dry, with warm and inviting conditions prevailing. Arguably, the climatic patterns suggest March as a peak month for visiting beaches due to the optimal sea surface temperature. A noteworthy increase in daylight hours cements March's place as a prime choice for sight-seeing and outdoor expeditions.

Temperature

Tamarindo witnesses its highest temperatures in February through April, reaching an average of 33°C (91.4°F).

Rainfall

In March, the rain falls for 5 days. Throughout March, 6mm (0.24") of precipitation is accumulated. In Tamarindo, during the entire year, the rain falls for 171 days and collects up to 1853mm (72.95") of precipitation.

Sea temperature

The months with the coldest seawater are January through March and December, with an average sea temperature of 27°C (80.6°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In Tamarindo, the average length of the day in March is 12h and 5min.
On the first day of March, sunrise is at 05:57 and sunset at 17:53. On the last day of the month, sunrise is at 05:40 and sunset at 17:54 CST.

Sunshine

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

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index. A UV Index of 11, and more, symbolizes an extreme health hazard from unsafe exposure to UV radiation for average individuals.
Note: In March, a daily UV index of 12 turns into the following recommendations:
Enforce every vital precaution. Those with light skin could endure burns in a matter of minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. A sunscreen boasting a minimum SPF of 30 should be generously applied and reapplied even on cloudy days, post swim or outdoor exercise. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.