Climate of San Bernardino, California, USA
Point-value climate at San Bernardino (California, United States of America). Population approximately 1,745,000.
Located in California, United States of America, San Bernardino has a seasonal climate. Population approximately 1,745,000. Monthly average temperatures range from 12.3°C / 54.1°F in January to 26.3°C / 79.3°F in August, with rainfall varying from 2 mm / 0.1 in (June) to 67 mm / 2.6 in (February) — about 315 mm / 12.4 in across the year. These are point-value climate normals sampled at San Bernardino's coordinates — often quite different from the surrounding region's area-weighted average.
Best sunny months: April, May, June, July, August, September, October, November.
Best time to visit San Bernardino →
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 12.3°C54.1°F | 66 mm2.6″ | — |
| February | 13.4°C56.1°F | 67 mm2.6″ | — |
| March | 14.4°C57.9°F | 60 mm2.4″ | — |
| April | 16.9°C62.4°F | 21 mm0.8″ | Sunny & Mild |
| May | 19.5°C67.1°F | 8 mm0.3″ | Sunny & Mild |
| June | 23°C73.4°F | 2 mm0.1″ | Sunny & Warm |
| July | 26°C78.8°F | 2 mm0.1″ | Sunny & Hot, Sunny & Warm |
| August | 26.3°C79.3°F | 5 mm0.2″ | Sunny & Hot |
| September | 24.3°C75.7°F | 9 mm0.4″ | Sunny & Warm |
| October | 20.1°C68.2°F | 10 mm0.4″ | Sunny & Warm, Sunny & Mild |
| November | 15.4°C59.7°F | 27 mm1.1″ | Sunny & Mild |
| December | 12.3°C54.1°F | 38 mm1.5″ | — |
Frequently asked questions
What is the best time to visit San Bernardino?
The months with the sunniest, driest weather are April, May, June, July, August, September, October, November. San Bernardino's warmest month is August at an average of 26.3°C / 79.3°F, and its driest month is June with about 2 mm / 0.1 in of rain.
What is the climate of San Bernardino?
San Bernardino, in California, United States of America, has monthly average temperatures ranging from 12.3°C / 54.1°F in January to 26.3°C / 79.3°F in August. Annual rainfall is approximately 315 mm / 12.4 in, with the wettest month being February (67 mm / 2.6 in) and the driest June (2 mm / 0.1 in).
What is the average temperature in San Bernardino in August?
The average temperature in San Bernardino in August is 26.3°C / 79.3°F, with rainfall of about 5 mm / 0.2 in — the warmest month of the year.
When is the driest month in San Bernardino?
The driest month in San Bernardino is June, with about 2 mm / 0.1 in of average monthly rainfall. Average temperature that month is 23°C / 73.4°F.
When is the wettest month in San Bernardino?
The wettest month in San Bernardino is February, with approximately 67 mm / 2.6 in of average monthly rainfall.