San Bernardino Weather in October
October in San Bernardino brings very high temperatures around 30°C (86°F) during the day, dropping to 19°C (66°F) at night, with the most rainfall of the year.
Rainfall in San Bernardino in October
Known for its peak rainfall, this month often has intense showers. It's wise to carry a poncho to protect yourself from the rain. Expect around 7 days of rain based on historical data, with 198 mm (7.8 in) average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in San Bernardino in October
San Bernardino in October gets highs of 30°C (86°F) during the day and drops to 19°C (66°F) at night. For most visitors, the main thing to prepare for is the heat during the day. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in San Bernardino in October
The city usually sees around 244 hours of sunlight, indicating many sunny days — a great month for sightseeing.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July and August typically offer the best weather for San Bernardino.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Paraguay, check out our San Bernardino's climate page.
San Bernardino Temperature in October
Min Temperature
19°C (66°F)
Max Temperature
30°C (86°F)
Chance of Rain
23%
Precipitation
198 mm (7.8 in)
Rainy days
7 days
Humidity
67% *
Sunshine
244 hours *
Percentage Sunshine
*
Daily Historical Temperatures
49-year average (1976-2025)
Based on our historical records, temperatures in San Bernardino typically stay consistent throughout October, with daily highs averaging around 30°C (86°F). Nights are pleasant, with lows typically ranging from 18°C (64°F) to 21°C (70°F).
Average temperatures in October
Daily Historical Precipitation
49-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 San Bernardino in October
Browse day-by-day weather records for San Bernardino spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Bernardino historical weather extremes in October
Based on 19 years of weather observations (2006-2025), these are the most extreme conditions recorded in San Bernardino.
- San Bernardino recorded its highest October temperature of 44°C (111°F) on October 1, 2020.
- The lowest overnight temperature recorded in October was 8°C (46°F) (October 1, 2009).
- The wettest day in October San Bernardino was on October 2, 2006 with 97 mm (3.8 in) of precipitation.
Best Places in Paraguay in October
Find out more about the weather in Paraguay and which places have the best travel conditions in this month. See all of Paraguay in October →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in San Bernardino in October
Warm but pleasant conditions in San Bernardino in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in San Bernardino 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 Paraguay, check out our San Bernardino's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Bernardino climate overview or explore weather in Paraguay.
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