Nuevo Arenal Weather in October
Thinking of visiting Nuevo Arenal in October? Expect high temperatures reaching 29°C (84°F) during the day, dropping to 21°C (70°F) at night, and be prepared for the wettest month of the year.
Rainfall in Nuevo Arenal in October
As part of the rainy season, Nuevo Arenal sees around 22 days of rain in October, with an average of 318 mm (13 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Nuevo Arenal in October
October in Nuevo Arenal brings high temperatures, with highs of 29°C (84°F) and nights around 21°C (70°F). This kind of day-to-night contrast is typical for this time of year. Nights are mild at around 21°C (70°F), which is comfortable for most people.If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit Nuevo Arenal. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Nuevo Arenal's climate page.
Nuevo Arenal Temperature in October
Min Temperature
21°C (70°F)
Max Temperature
29°C (84°F)
Chance of Rain
74%
Precipitation
318 mm (13 in)
Rainy days
22 days
Humidity
89% *
Daily Historical Temperatures
42-year average (1976-2025)
Based on our historical records, temperatures in Nuevo Arenal typically stay consistent throughout October, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in October
Daily Historical Precipitation
42-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Nuevo Arenal in October
Browse day-by-day weather records for Nuevo Arenal spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nuevo Arenal historical weather extremes in October
According to our 29 years of weather records for Nuevo Arenal, the following extremes were recorded between 1996 and 2025.
- The hottest October day on record in Nuevo Arenal reached 36°C (97°F) (October 3, 2013).
- The lowest daytime temperature in October was 22°C (72°F), recorded on October 31, 2001.
- The coldest night in October in Nuevo Arenal was on October 20, 2021, with a minimum of 18°C (64°F).
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
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tolerable
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What to Wear in Nuevo Arenal in October
Warm temperatures in October make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Heavy rain is guaranteed, please bring a good poncho and waterproof everything!What To Do in Nuevo Arenal in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Costa Rica, check out our Nuevo Arenal's climate page.
See the full Nuevo Arenal climate overview or explore weather in Costa Rica.
