When to go · San Bernardino

San Bernardino in August

Avoid month. Listed as a month to avoid: Jul–Aug (95–100°F highs), and Santa Ana wind days.

Key facts

Verdict: Avoid
Temperature: 36°C (97°F)97°F (36°C) / 18°C (64°F)64°F (18°C); average high / low
Rain days: 1
Crowds: High; United States overall
Prices: High; United States overall

Plan around it

Verdict

AvoidBest and avoid months for San Bernardino

Listed as a month to avoid: Jul–Aug (95–100°F highs), and Santa Ana wind days.

August is rated avoid. These months rate higher:

Long-term averages

San BernardinoHighs around 36 °C (97 °F), lows around 18 °C (64 °F), rain on about 1 dayHighs around 97 °F (36 °C), lows around 64 °F (18 °C), rain on about 1 day

United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.

Weather, crowds and prices for any two months in San Bernardino, side by side.

First month

Second month

August: Listed as a month to avoid: Jul–Aug (95–100°F highs), and Santa Ana wind days.

March: Inside San Bernardino's best window: Mar–May, Oct–Nov.

San Bernardino: figures are long-term averages from this guide, not a forecast.