Best Time to Visit Diamond Bar: Month-by-Month Guide
Best months for Diamond Bar: June, July, May, September.
- Best months for Diamond Bar: June, July, May, September.
- Peak season is August, July, September. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: January, February, March, April, May, June, October, November, December. Good weather without the busiest period.
- Wettest months: February, March, January.
- The weather is good almost all year.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 18°C | 7°C | 92 mm | 6 | – | – | 7.5 |
| February | 18°C | 7°C | 101 mm | 7 | – | – | 7.3 |
| March | 19°C | 9°C | 63 mm | 6 | – | – | 7.9 |
| April | 21°C | 10°C | 26 mm | 4 | – | – | 8.5 |
| May | 23°C | 13°C | 11 mm | 2 | – | – | 8.8 |
| June | 27°C | 15°C | 2 mm | 0 | – | – | 9.1 |
| July | 30°C | 18°C | 2 mm | 1 | – | – | 8.9 |
| August | 31°C | 18°C | 1 mm | 0 | – | – | 8.6 |
| September | 29°C | 17°C | 4 mm | 1 | – | – | 8.8 |
| October | 26°C | 14°C | 19 mm | 2 | – | – | 8.8 |
| November | 21°C | 10°C | 26 mm | 3 | – | – | 8.6 |
| December | 17°C | 7°C | 62 mm | 5 | – | – | 7.6 |
Frequently asked questions
When is the best time to visit Diamond Bar?
The best months are June, July, May, September.
When is the rainy season in Diamond Bar?
The wettest months are February, March, January.