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Arecibo Weather in October
Arecibo in October averages 31°C (88°F) during the day and 24°C (75°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in Arecibo in October
You can expect rain on around 18 days based on historical patterns, with 148 mm (5.8 in) average for the month. Rain falls regularly this month and can be quite heavy when it does. Showers can be substantial, so waterproof gear is a good idea.
Temperature in Arecibo in October
Arecibo in October gets highs of 31°C (88°F) during the day and drops to 24°C (75°F) at night. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.If you're looking for dry conditions and comfortable temperatures, October may not be the ideal month to visit Arecibo. Our weather planner can help you explore destinations with more pleasant weather conditions.
Arecibo Temperature in October
Min Temperature
24°C (75°F)
Max Temperature
31°C (88°F)
Chance of Rain
59%
Precipitation
148 mm (5.8 in)
Rainy days
18 days
Arecibo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Arecibo - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Arecibo typically stay consistent throughout October, with daily highs averaging around 31°C (88°F). Nights are warm, with lows around 24°C (75°F).
Average temperatures in October
Historical weather records for Arecibo in October
Browse day-by-day weather records for Arecibo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Arecibo historical weather extremes in October
According to our 49 years of weather records for Arecibo, the following extremes were recorded between 1976 and 2025.
- On October 26, 2021, temperatures climbed to 36°C (97°F), marking the warmest October day on record.
- On October 28, 2007, Arecibo saw its coldest October day with temperatures maxing out at 25°C (77°F).
- The coldest night in October in Arecibo was on October 31, 1994, with a minimum of 21°C (70°F).
Best Places in Puerto Rico in October
Find out more about the weather in Puerto Rico and which places have the best travel conditions in this month. See all of Puerto Rico 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 Arecibo 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. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in Arecibo in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Arecibo 3-Day Forecast
More climate data for Arecibo
See the full Arecibo climate overview or explore weather in Puerto Rico.
Popular in October
Where to go in October - average daytime high across popular destinations.
San Juan
31°C (88°F) Rio Grande
30°C (86°F) Aguada
30°C (86°F) Luquillo30°C (86°F) Culebra29°C (84°F) Rincon30°C (86°F) Vieques29°C (84°F) Fajardo30°C (86°F) Bucket list
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