Arenal Volcano
Costa Rica · Central America
Year-round range: 66°F to 83°F
March
Excellent conditions this month
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
March is warm and sunny — good for being outdoors.
Shaded band = typical daily swing (P10 of night lows to P90 of afternoon peaks) — spans wider than avg high/low lines because it captures day-to-day variation.
| = MarRainfall
Monthly rain and rain days.
March is one of the driest months — very little rain expected.
Sunshine
Average hours of bright sun per day.
March has decent sunshine — a mix of sun and cloud.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
March stays comfortable — humidity stays low, though afternoons turn warm.
Time-of-day patterns
Typical hourly rhythm for March.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In March, afternoons reach about 77° and nights settle near 64°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity |
|---|---|---|---|---|---|---|
| Jan | 78°F | 66°F | 15 | 4.0in | 4.3h | 85.14285714285714% |
| Feb | 80°F | 66°F | 8 | 0.5in | 5.2h | 81.14285714285714% |
| Mar | 82°F | 66°F | 2 | 0.5in | 5.3h | 77.14285714285714% |
| Apr | 83°F | 68°F | 6 | 1.7in | 4.5h | 76.42857142857142% |
| May | 81°F | 70°F | 23 | 7.4in | 2.6h | 84.71428571428571% |
| Jun | 79°F | 70°F | 29 | 8.2in | 1.7h | 90.85714285714286% |
| Jul | 79°F | 69°F | 28 | 6.0in | 1.9h | 90.57142857142857% |
| Aug | 79°F | 69°F | 29 | 7.6in | 2h | 90.57142857142857% |
| Sep | 79°F | 69°F | 28 | 10in | 2.2h | 90.71428571428571% |
| Oct | 78°F | 69°F | 28 | 12in | 2h | 91.71428571428571% |
| Nov | 77°F | 68°F | 26 | 6.4in | 2.1h | 90.85714285714286% |
| Dec | 77°F | 67°F | 21 | 1.9in | 3.4h | 87.85714285714286% |