Santa Teresa (Malpais) weather in October

October in Santa Teresa: hot, soaked, with clean air — a gamble, with 29 rainy days.

Updated September 2026 · climate normals from ERA5 reanalysis

Santa Teresa🇨🇷 Costa Rica · Costa Rica & Panama · Beach55
  1. 92Jan
  2. 94Feb
  3. 91Mar
  4. 84Apr
  5. 62May
  6. 58Jun
  7. 70Jul
  8. 60Aug
  9. 63Sep
  10. 55Oct
  11. 71Nov
  12. 87Dec

#12 of 12 months in Santa Teresa · #1249 of 1413 destinations to visit in October · comfort 55/100 (tier D)

Days
28°C
Nights
25°C
Wet days
29
Sun
8.1 h
Humidity
88%
Daylight
12 h
Santa Teresa, Costa Rica
Photo: Malcoln Oliveira · Pexels

Traveller notes on Santa Teresa in October

Other months in Santa Teresa

Santa Teresa forum threads describe August as genuinely rainy country-wide, with the typical pattern being sunny mornings, a real chance of afternoon rain, and possibly wet overnight stretches too - posters called mid-August 'nice and wet' rather than a washout. The consistent advice was to front-load activities for the morning and treat the area as a place to slow down and relax in the afternoons. Multiple threads flagged that the heaviest rainy season here doesn't really start until the very end of August into September/October, when some restaurants and hotels close for the slow season, meaning earlier August still runs noticeably better than what follows it.
NicoyaPeninsulaRegular · August · 1 month ago · Read more on Tripadvisor ↗
Forum posters place February and March inside Guanacaste/Nicoya's dry season - genuinely dry and dusty by Costa Rican standards, a sharp contrast to the wetter months later in the year. The typical pattern posters describe even in the dry season: sun and partly cloudy skies dominate, with any rain that does show up more likely arriving late afternoon or at night rather than disrupting daytime plans - the standard advice is to schedule surfing, beach time and outdoor activities for the morning and early afternoon regardless of month. Posters consistently name this Pacific Nicoya Peninsula stretch (Santa Teresa included) as one of the more reliably dry corners of Costa Rica during the dry season months.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

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Santa Teresa climate normals — October

Daytime high28°C / 82°F🥵 hot
Nighttime low25°C / 76°F
Feels like (high)33°C / 91°F
Sea temperature30°C / 86°F♨️ bath-warm
Rainfall444 mm / 17.5 in⛈ soaked
Rainy days29 days
Humidity88%💦 very humid
Dew point24°C / 75°F
Sunshine8.1 h/day
Daylight11.9 h
Wind16 km/h / 10 mph
Air quality (US AQI)23🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Santa Teresa in October

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.

Quietone of its worst months for weather(estimated)

JFMAMJJASOND

Peak crowdsBusyShoulder seasonQuiet

Best months for Santa Teresa'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).

Toughest weatherSanta Teresa's weather peaks January–March, best around February.

JFMAMJJASOND

Best weatherFair weatherToughest weather

What's on in Santa Teresa in October

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Season

    Surf season

    15 Mar – 31 Oct · usually

    The southern swells arrive and the beach breaks from Playa Carmen up to Manzanillo work most days — consistent and forgiving, which is why the town exists at all. Dawn is when it is cleanest.

  • Season

    The shutdown months

    15 Sep – 31 Oct · usuallyOff-season shutdownClosures

    The wettest weeks of the year, when the road in gets cut more than once and a good share of the restaurants and hotels close until November. Cheap, empty, and half of it shut.

  • Season

    Wet season

    MonsoonRisk

    29 rainy days and about 444 mm in the month — the real kind of rainy season, not afternoon showers.

    from the climate normals

What's on around the world in October →

Nearby, and something's on

Within 300 km of Santa Teresa — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Santa Teresa?

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Santa Teresa in October — FAQ

Is October a good time to visit Santa Teresa?
October in Santa Teresa: hot, soaked, with clean air — a gamble, with 29 rainy days. It ranks #12 of 12 months for Santa Teresa on SeasonMap's comfort score (55/100).
What is the weather like in Santa Teresa in October?
In October, Santa Teresa averages a daily high of 27.5°C and a low of 24.6°C, with about 443.9 mm of rain over roughly 28.9 rainy days.
What is the air quality in Santa Teresa in October?
Santa Teresa has a mean US Air Quality Index of about 23 in October.

Within 300 km: Jacó's Humpback whales around 15 Jul – 15 Nov, and Nosara's Arribada at Ostional around 1 Jul – 31 Dec.