SeasonMapNosara weather in December
Costa Rica
December in Nosara: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons.
#4 of 12 months in Nosara · #222 of 1383 destinations to visit in December · comfort 87/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nosara in December
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Nosara climate normals — December
| Daytime high | 31°C / 87°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 25°C / 76°F | |
| Feels like (high) | 36°C / 97°F | |
| Sea temperature | 29°C / 84°F | ♨️ bath-warm |
| Rainfall | 64 mm / 2.5 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 23°C / 73°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 11.6 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 24 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Nosara in December
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.
Peak crowdsDry season, Christmas and New Year, school holidays in 3 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Nosara's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherNosara's weather peaks January–March, best around February.
Best weatherFair weatherToughest weather
What's on in Nosara in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Arribada at Ostional
1 Jul – 31 Dec · usuallyTurtle nestingBook earlyOstional, ten minutes up the coast, takes mass arrivals of olive ridleys most months from July, usually a few days after the last-quarter moon and heaviest from September to November. You go with a village guide or not at all. Source ↗
- Season
Dry season
1 Dec – 15 Apr · usuallyCrowdedThe Guanacaste dry months: the forest drops its leaves, the road to Guiones turns to dust, and the town runs full of retreats and repeat visitors through to Easter.
- Holiday
Christmas and New Year
18 Dec – 3 JanChristmas & New YearCrowdedBook earlyThe fortnight everything is taken and rates roughly double, with charter flights into Liberia and a queue of hire cars on the last dirt stretch into town. Source ↗
Nearby, and something's on
Within 300 km of Nosara — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Nosara?
Nosara in December — FAQ
- Is December a good time to visit Nosara?
- December in Nosara: sweltering, a little rain, with clean air — fine if you can take 36°C afternoons. It ranks #4 of 12 months for Nosara on SeasonMap's comfort score (87/100).
- What is the weather like in Nosara in December?
- In December, Nosara averages a daily high of 30.5°C and a low of 24.5°C, with about 64.3 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Nosara in December?
- Nosara has a mean US Air Quality Index of about 24 in December.
Other months in Nosara
Compare Nosara in December
Warmer or cooler than Nosara in December
Similar destinations in Central America — December
Within 300 km: Jacó's Olive ridley nesting around 15 Aug – 15 Dec, and La Fortuna's Christmas and New Year on 18 Dec – 3 Jan.