SeasonMapJacó weather by month
Costa Rica
The best time to visit Jacó is January to March — 91/100 in February, 29°C and 14 rainy days. The best season is the dry season, December to April (82/100 on average).
The worst month is October at 53/100 — hot, soaked, clean air. See October →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Costa Rica →
Jacó, month by month
Comfort score out of 100 for the kind of trip Jacó is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 85 | A | 28°C | 22 d | 10 h | Peak | 2 |
| FebFebruary | 91 | S | 29°C | 14 d | 11 h | Busy | 1 |
| MarMarch | 88 | A | 30°C | 20 d | 11 h | Peak | 2 |
| AprApril | 75 | B | 29°C | 28 d | 10 h | Peak | 3 |
| MayMay | 62 | C | 28°C | 31 d | 8 h | Shoulder | 2 |
| JunJune | 60 | C | 28°C | 30 d | 8 h | Shoulder | 2 |
| JulJuly | 58 | D | 28°C | 31 d | 8 h | Quiet | 3 |
| AugAugust | 59 | D | 28°C | 31 d | 8 h | Shoulder | 4 |
| SepSeptember | 56 | D | 28°C | 30 d | 8 h | Quiet | 4 |
| OctOctober | 53 | D | 27°C | 31 d | 7 h | Quiet | 4 |
| NovNovember | 61 | C | 27°C | 30 d | 8 h | Shoulder | 3 |
| DecDecember | 72 | B | 28°C | 29 d | 10 h | Peak | 3 |
What's on in Jacó through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
- March
- Semana Santa29 Mar – 5 AprHoliday
- April
- South swell season1 Apr – 31 Oct (usually)Season
- May
- Green season1 May – 30 Nov (usually)Season
- July
- Humpback whales15 Jul – 15 Nov (usually)Nature
- August
- Olive ridley nesting15 Aug – 15 Dec (usually)Nature
- December
- Christmas and New Year18 Dec – 3 JanHoliday
- Dry season15 Dec – 15 Apr (usually)Season
Crowds in Jacó in February
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyDry season(estimated)
Peak crowdsBusyShoulder seasonQuiet