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Compare Costa Rica weather in February, from dry and sunny Tamarindo to wetter Puerto Viejo, plus Jacó, Arenal and San José.
San José Weather in October
October in San José sees daytime temperatures around 24°C (75°F) and lows of 16°C (61°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.
Rainfall in San José in October
San José is in the rainy season in October, with rain on around 23 days and an average of 490 mm (19 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.
Temperature in San José in October
In October, San José sees high temperatures, with highs of 24°C (75°F). Nights drop to around 16°C (61°F). Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in San José in October
With about 162 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit San José. Our weather planner can help you explore destinations with more pleasant weather conditions.
San José Temperature in October
Min Temperature
16°C (61°F)
Max Temperature
24°C (75°F)
Chance of Rain
77%
Precipitation
490 mm (19 in)
Rainy days
23 days
Humidity
87%
Sunshine
162 hours
Percentage Sunshine
San José Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San José - and find the best time to visit.
Daily Historical Temperatures
46-year average (1976-2025)
Based on our historical records, temperatures in San José typically stay consistent throughout October, with daily highs averaging around 24°C (75°F). Nights are pleasant, with lows around 19°C (66°F).
Average temperatures in October
Daily Historical Precipitation
46-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather records for San José in October
Browse day-by-day weather records for San José spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San José historical weather extremes in October
Based on 31 years of weather observations (1994-2025), these are the most extreme conditions recorded in San José.
- San José recorded its highest October temperature of 33°C (91°F) on October 20, 2017.
- The lowest daytime temperature in October was 19°C (66°F), recorded on October 5, 2017.
- The lowest overnight temperature recorded in October was 15°C (59°F) (October 7, 2018).
- The wettest October day on record brought 140 mm (5.5 in) of precipitation to San José (October 5, 2017).
Best Places in Costa Rica in October
Find out more about the weather in Costa Rica and which places have the best travel conditions in this month. See all of Costa Rica in October →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in San José in October
Comfortable temperatures call for an easy wardrobe in October. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in San José in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming7/10 -
Camping6/10
San José 3-Day Forecast
More climate data for San José
Temperature Rainfall Sunshine Humidity
See the full San José climate overview or explore weather in Costa Rica.
Popular in October
Where to go in October - average daytime high across popular destinations.
Tamarindo
30°C (86°F) Santa Teresa28°C (82°F) Cahuita29°C (84°F) Fortuna28°C (82°F) Puerto Viejo de Talamanca29°C (84°F) Herradura28°C (82°F) Jacó28°C (82°F) San José24°C (75°F) Bucket list
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