Sun Valley, USA
mountain climate · nature · medium crowds · premium prices
Not ranked as a sun destination — shown for reference.
There are 83 mountain destinations in our catalog, and Sun Valley's numbers hold their own: a 99/100 sun score at its July peak, when rain interrupts roughly 10% of days. For an outdoors-led escape in mountain country, the data is a good starting point.
Across a typical year, afternoon temperatures swing between 0°C (January) and 27°C (July). The wet–dry contrast is pronounced: 39% rain-day odds in May against 10% in July. Beach-warm afternoons (24°C and up) hold through July–August.
Season by season (on the northern calendar), spring brings 9°C highs with 35% rain-day odds, summer 25°C at 15%, autumn 12°C at 24%, and winter 0°C at 34%. Summer wins on the numbers and winter loses them; everything in between is a trade-off between warmth and crowds.
Best months to visit Sun Valley
Ranked purely on sunshine odds, the podium is July at 99/100, then August at 99 and June at 98. Anything in June–September clears our 70-point reliability bar. At the other end, December scores just 54, the weakest month of the year.
Among the mountain destinations in our catalog, its July rain odds beat 91% of the field.
Month-by-month breakdown for Sun Valley → · More destinations for July →
Right now the 16-day outlook shows 4 mostly-clear days (under 40% cloud) and one day with real rain risk, with temperatures between -4°C and 13°C — which is how Sun Valley earns its current 60/100 sun score.
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Flights from Europe
| From | Distance | Estimated non-stop time | |
|---|---|---|---|
| Brussels (BRU) | 7,955 km | ~10 h 30 | Find flights → |
| Amsterdam (AMS) | 7,855 km | ~10 h 15 | Find flights → |
| London (LON) | 7,687 km | ~10 h | Find flights → |
| Paris (PAR) | 8,022 km | ~10 h 30 | Find flights → |
| Frankfurt (FRA) | 8,217 km | ~10 h 45 | Find flights → |
Estimates from distance; actual schedules may require a connection.
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Next 16 days
Live forecast, refreshed twice daily. Forecasts updated 27 Oct, 18:52 CET.
| Date | High / low | Cloud | Rain odds |
|---|---|---|---|
| Tue 27 Oct | 6° / -1° | 53% | 2% |
| Wed 28 Oct | 6° / 0° | 9% | 0% |
| Thu 29 Oct | 9° / 0° | 50% | 2% |
| Fri 30 Oct | 9° / 4° | 100% | 37% |
| Sat 31 Oct | 9° / 0° | 75% | 40% |
| Sun 1 Nov | 6° / -3° | 91% | 49% |
| Mon 2 Nov | 9° / -4° | 3% | 9% |
| Tue 3 Nov | 11° / 0° | 63% | 5% |
| Wed 4 Nov | 11° / 1° | 99% | 7% |
| Thu 5 Nov | 10° / 1° | 48% | 11% |
| Fri 6 Nov | 12° / 1° | 39% | 23% |
| Sat 7 Nov | 13° / 3° | 88% | 32% |
| Sun 8 Nov | 10° / 3° | 98% | 20% |
| Mon 9 Nov | 8° / -1° | 64% | 25% |
| Tue 10 Nov | 10° / -1° | 70% | 15% |
| Wed 11 Nov | 12° / 2° | 18% | 15% |
Sun Valley climate, month by month
2015–2024 averages (July highlighted as the best month).
| Month | Day / night °C | Cloud | Rain-day odds | Sun score |
|---|---|---|---|---|
| January | -0.2° / -10.7° | 61.7% | 32.9% | 56 |
| February | 0.2° / -10.6° | 61.8% | 37.6% | 55 |
| March | 3.6° / -7.3° | 60.8% | 38% | 57 |
| April | 8° / -3.8° | 54.3% | 29% | 64 |
| May | 14° / 0.4° | 53.8% | 38.7% | 66 |
| June | 21.2° / 5.7° | 39.8% | 23% | 98 |
| July | 27.4° / 10.8° | 25.1% | 10% | 99 |
| August | 25.8° / 9.7° | 28.1% | 11.9% | 99 |
| September | 19.7° / 5° | 36.9% | 23% | 89 |
| October | 11.3° / -1.2° | 45.3% | 21.7% | 61 |
| November | 4.8° / -6.5° | 57.2% | 26.3% | 58 |
| December | 0.4° / -10.5° | 62.5% | 31.3% | 54 |
Similar sunny destinations
mountain escapes with a sun score within ±10 of Sun Valley right now.