San Bernardino Weather in May

Thinking of visiting San Bernardino in May? Expect high temperatures reaching 26°C (79°F) during the day, dropping to 15°C (59°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in San Bernardino in May

Historically, approximately 6 days this month are expected to have rain, averaging 143 mm (5.6 in). Showers tend to be short but heavy rather than persistent drizzle. When it rains, it usually means it, but it doesn't last long.

Temperature in San Bernardino in May

Expect highs of 26°C (79°F) in San Bernardino in May, with nights dropping to around 15°C (59°F). This month falls in the winter season. Conditions stay fairly consistent through the month, making it easier to plan what to wear. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in San Bernardino in May

With approximately 206 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for San Bernardino.