When to go · Diamond Bar
Diamond Bar in August
Avoid month. Listed as a month to avoid: Jul–Aug (hot), Dec–Feb (rainy).
Key facts
- Verdict
- Avoid
- Temperature
- 32°C (90°F)90°F (32°C) / 19°C (66°F)66°F (19°C)
- average high / low
- Rain days
- 0
- Crowds
- High
- United States overall
- Prices
- High
- United States overall
Verdict
Listed as a month to avoid: Jul–Aug (hot), Dec–Feb (rainy).
Is another month better than August?
August is rated avoid. These months rate higher:
Weather in August
- Diamond BarHighs around 32 °C (90 °F), lows around 19 °C (66 °F), rain on about 0 daysHighs around 90 °F (32 °C), lows around 66 °F (19 °C), rain on about 0 days
Crowds and prices
- Crowds · United States overall
- High
- Prices · United States overall
- High
United States overall: Hot and busy; wildfire smoke in the West, hurricane peak begins in the Southeast.
High-price month: see what to book ahead.
Compare two months
Weather, crowds and prices for any two months in Diamond Bar, side by side.
Verdict
Aug: Avoid
Mar: Great (better)
Daytime high
Aug: 32 °C (90 °F)90 °F (32 °C)
Mar: 21 °C (70 °F)70 °F (21 °C)
Night low
Aug: 19 °C (66 °F)66 °F (19 °C)
Mar: 9 °C (48 °F)48 °F (9 °C)
Rain days
Aug: 0 (better)
Mar: 5
Crowds
Aug: High
Mar: Medium
Prices
Aug: High
Mar: Medium
Festivals listed
Aug: 0
Mar: 2
August: Listed as a month to avoid: Jul–Aug (hot), Dec–Feb (rainy).
March: Inside Diamond Bar's best window: Mar–May, Oct–Nov.
Diamond Bar: figures are long-term averages from this guide, not a forecast.
What to pack
- Light, breathable clothes, a sun hat and sunscreen