San Bernardino Weather in August

San Bernardino in August sees moderate temperatures, with highs around 18°C (64°F) and overnight lows of 8°C (46°F). Rainfall is fairly high at around 168 mm (6.6 in) on average, so pack waterproofs just in case.

Rainfall in San Bernardino in August

Analyzing past climate data, one can expect approximately 19 days of rain, averaging 168 mm (6.6 in). Wet weather is a regular and significant part of this month. Frequent days of rain combined with high totals means proper waterproofs are worth packing.

Temperature in San Bernardino in August

Expect highs of 18°C (64°F) in San Bernardino in August, with nights dropping to around 8°C (46°F). Summer occurs in August. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in San Bernardino in August

The area enjoys a balanced 184 hours of sunlight, ensuring it's neither too overcast nor too sunny.

If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit San Bernardino.