Costa Rica
Costa Rica in March: weather, sea & travel advice
This month's data profile
Heat shapes the decision
Costa Rica in March is climatically well suited to beach holidays. The average daily high is around 36 °C, and the sea is about 28 °C. With about 1 rainy day it is very dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
66/100 · #4
Warmth
#2
Dryness
#3
Sun
#1
Sea warmth
#8
Published best categories: Overall, Active
Costa Rica · MarchPhoto: Shiva Shenoy from Flower Mound, United States · CC BY 2.0Climate facts
- Average high
- 36 °C
- Average low
- 24 °C
- Sea
- 28 °C
- Rainy days (est.)
- 1 rainy day (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 59 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| February | 34 | 24 | 0 | 3 | 7.6 | 62 | 4.3 | 28 | 70 |
| March (selected) | 36 | 24 | 1 | 7 | 8.1 | 59 | 3.8 | 28 | 66 |
| April | 36 | 25 | 5 | 30 | 7.7 | 60 | 3.1 | 29 | 63 |
How do the previous and next months compare?
Baseline: March (66/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| February | +4 | -1.4 °C | -0.5 °C | -0.6 | -4.2 mm | -0.5 h | +3.6 % | +0.5 m/s | -0.4 °C |
| April | -3 | +0.2 °C | +1.1 °C | +4.1 | +22.9 mm | -0.4 h | +1.5 % | -0.7 m/s | +0.8 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Costa Rica in March?
The average daily high is around 36 °C, with an average daily low of about 24 °C.
Can you swim in Costa Rica in March?
The sea is about 28 °C (very warm).
Does it rain a lot in Costa Rica in March?
The curated estimate is about 1 rainy day per month, not a directly measured long-term average. Total precipitation averages around 7 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Costa Rica?
By the climate score, January, February, March and December are the strongest months for Costa Rica. For a beach trip: January, February, November and December. March is one of them.