Costa Rica
Costa Rica in April: weather, sea & travel advice
This month's data profile
Heat shapes the decision
Costa Rica in April is climatically mixed. The average daily high is around 36 °C, and the sea is about 29 °C. With about 5 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
63/100 · #6
Warmth
#1
Dryness
#5
Sun
#2
Sea warmth
#2
Published best categories: none
Costa Rica · AprilPhoto: Shiva Shenoy from Flower Mound, United States · CC BY 2.0Climate facts
- Average high
- 36 °C
- Average low
- 25 °C
- Sea
- 29 °C
- Rainy days (est.)
- 5 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 60 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| March | 36 | 24 | 1 | 7 | 8.1 | 59 | 3.8 | 28 | 66 |
| April (selected) | 36 | 25 | 5 | 30 | 7.7 | 60 | 3.1 | 29 | 63 |
| May | 33 | 26 | 20 | 210 | 6.5 | 72 | 2.3 | 29 | 46 |
How do the previous and next months compare?
Baseline: April (63/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| March | +3 | -0.2 °C | -1.1 °C | -4.1 | -22.9 mm | +0.4 h | -1.5 % | +0.7 m/s | -0.8 °C |
| May | -17 | -2.8 °C | +0.4 °C | +15 | +180.4 mm | -1.2 h | +12.3 % | -0.8 m/s | +0.2 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Costa Rica in April?
The average daily high is around 36 °C, with an average daily low of about 25 °C.
Can you swim in Costa Rica in April?
The sea is about 29 °C (very warm).
Does it rain a lot in Costa Rica in April?
The curated estimate is about 5 rainy days per month, not a directly measured long-term average. Total precipitation averages around 30 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. April is not among them.