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Best Time to Visit Phoenix
Real month-by-month weather for Phoenix, and real flight prices from London — so "best time" here means something you can check, not a generic guess. July runs warmest (43°C avg high).
Phoenix by month: weather & fares
Weather is averaged from 3 years of real historical data. Fares are the real cheapest on file from London that month.
| Month | Avg high / low | Avg rainfall | Cheapest fare |
|---|---|---|---|
| January | 17° / 5°C | ~41mm | — |
| February | 21° / 7°C | ~57mm | — |
| March | 24° / 10°C | ~50mm | — |
| April | 30° / 14°C | ~4mm | — |
| May | 35° / 20°C | ~2mm | — |
| June | 40° / 25°C | ~7mm | — |
| July | 43° / 30°C | ~6mm | — |
| August | 42° / 29°C | ~20mm | — |
| September | 39° / 25°C | ~38mm | — |
| October | 33° / 18°C | ~45mm | — |
| November | 25° / 11°C | ~30mm | — |
| December | 21° / 8°C | ~18mm | — |
Nearby airports
- Phoenix-Mesa-Gateway Airport (AZA)36 km
Planning tips for Phoenix
- Compare the weather and fare columns above together — the cheapest month isn't always the best-weather month.
- Shoulder-season travel (just before or after the busiest months) often balances good weather against lower prices.
- Book 4-8 weeks ahead where possible — a general pattern, not a guarantee for this specific destination.
- Check nearby airports above if Phoenix has real alternatives — a short extra journey can mean a much lower fare.
- Factor in local public holidays and school terms at your destination, not just at home — prices and crowds follow both.
- Re-check rainfall, not just temperature — a warm month can still be a very wet one.
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FAQs — Best time to visit Phoenix
July has the highest average temperatures, based on 3 years of real historical weather data.