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Puntarenas weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Puntarenas?
For a warm holiday, the best week has been 14–20 January (Weather Index 84). Favourable start dates for a 7-day trip run from 3 January to 7 February. February and March are warmest (32°C), February is driest and February and March have the most sun.
- Warmest
- February and March 32°C
- Coolest
- September, October and November 29°C
- Driest
- February 15% rain-day chance
- Wettest
- September 100% rain-day chance
- Sunniest
- February and March 12 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Puntarenas
Puntarenas historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 30.8 | 24.5 | 32.3 | 10.0 | 33.8 | 11.0 |
| February | 32.3 | 24.9 | 14.6 | 4.1 | 12.8 | 11.5 |
| March | 32.3 | 25.2 | 32.3 | 10.0 | 32.0 | 11.5 |
| April | 30.9 | 25.4 | 76.0 | 22.8 | 151.7 | 10.9 |
| May | 30.0 | 25.6 | 96.8 | 30.0 | 402.5 | 8.8 |
| June | 29.6 | 25.3 | 99.0 | 29.7 | 417.4 | 8.3 |
| July | 29.7 | 25.5 | 98.7 | 30.6 | 344.1 | 8.6 |
| August | 29.6 | 25.2 | 98.4 | 30.5 | 406.9 | 8.5 |
| September | 29.5 | 25.0 | 100.0 | 30.0 | 420.5 | 8.1 |
| October | 29.0 | 24.8 | 99.0 | 30.7 | 539.3 | 7.4 |
| November | 29.1 | 24.7 | 93.0 | 27.9 | 364.5 | 8.6 |
| December | 29.8 | 24.6 | 61.6 | 19.1 | 98.0 | 10.3 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.