March in San Bernardino brings very high temperatures, with highs of 32°C (90°F) and nights dropping to 22°C (72°F). Rainfall is on the higher side this month, averaging around 119 mm (4.7 in), so keep a rain jacket handy.
If you prefer enjoying temperate temperatures and rain-free days, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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Pick a month to see the average temperature, rainfall and sunshine in San Bernardino - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in San Bernardino typically stay consistent throughout March, with daily highs averaging around 32°C (90°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 23°C (73°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
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.
According to our 27 years of weather records for San Bernardino, the following extremes were recorded between 1999 and 2026.
Find out more about the weather in Paraguay and which places have the best travel conditions in this month. See all of Paraguay in March →
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).
Warm temperatures in March 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. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full San Bernardino climate overview or explore weather in Paraguay.
Where to go in March - average daytime high across popular destinations.
Villarrica
32°C (90°F) Areguá
32°C (90°F) San Bernardino32°C (90°F) Luque32°C (90°F) Asuncion32°C (90°F) Encarnación
31°C (88°F) Ciudad del Este31°C (88°F) Ybycuí32°C (90°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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