Weather overview
Йосемитская долина offers a distinct seasonal rhythm, shaped by its mountain setting. From November to March, the valley is quieter, with cooler air and occasional snow at higher elevations, while lower areas remain accessible. April brings a shift as temperatures rise and nature awakens, making it a popular time for visitors.
The dry season in Йосемитская долина runs from May through October, with warm days and minimal rain. June to August are the busiest months, as crowds gather to enjoy the valley’s trails and waterfalls under clear skies. By September, the weather remains pleasant, but the pace slows, offering a more relaxed experience.
Temperature
Winter in Йосемитская долина is mild compared to nearby peaks, with daytime averages around +4 °C in January and nights dipping to -4.2 °C. Frost is common, but heavy snow is rare in the valley itself. By March, temperatures climb to +8.8 °C, signaling the start of spring.
July and August are the warmest months, with highs reaching +38.6 °C and +36.9 °C respectively. Evenings cool down to +14.9 °C in July, providing relief after hot afternoons. September and October bring a gradual drop, with October averaging +14.5 °C—ideal for hiking without summer crowds.
| Month | Minimum | Maximum |
|---|---|---|
| January | -4.2 | 13 |
| February | -3.1 | 15.1 |
| March | -0.7 | 18 |
| April | 3.4 | 24.1 |
| May | 7.2 | 27.9 |
| June | 12 | 34.8 |
| July | 14.9 | 38.6 |
| August | 13.3 | 36.9 |
| September | 9.7 | 32.3 |
| October | 2.9 | 25.7 |
| November | -2.4 | 18.4 |
| December | -4.5 | 13.2 |
Precipitation
Йосемитская долина sees most of its rain in the cooler months, with January and February recording around 35.9 mm and 30.3 mm respectively. Snow is possible but usually light in the valley, while surrounding peaks may accumulate more. By April, precipitation drops sharply to 8 mm, marking the start of the dry season.
From May to October, rain is rare, with monthly totals often below 10 mm. July and August are the driest, averaging just 5.4 mm and 8 mm. The lack of rain during these months makes it easier to explore Йосемитская долина’s trails, though afternoon thunderstorms can occasionally develop in the mountains.
| Month | Precipitation |
|---|---|
| January | 35.9 |
| February | 30.3 |
| March | 20.1 |
| April | 8 |
| May | 5.3 |
| June | 3.6 |
| July | 5.4 |
| August | 8 |
| September | 4.3 |
| October | 3.8 |
| November | 9.4 |
| December | 21.4 |
What to pack
For a winter visit to Йосемитская долина, pack layers to handle the chill. Mornings can be frosty, so a warm jacket is useful, while afternoons may require only a light sweater. Waterproof shoes are a good idea if you plan to explore snowy areas outside the valley.
In summer, lightweight clothing is essential for Йосемитская долина’s heat, but evenings can be cool, so a light jacket or long sleeves are worth bringing. A hat and sunscreen are musts for protection against the strong sun. If you’re hiking, sturdy shoes and a refillable water bottle will help you stay comfortable on the trails.
Spring and fall in Йосемитская долина call for versatile layers. April and May can be unpredictable, with warm days and chilly nights, while September and October offer mild weather but cooler evenings. A mix of short and long sleeves, along with a light rain jacket, will prepare you for whatever the season brings.
| Month | Wind speed |
|---|---|
| January | 3.4 |
| February | 3.8 |
| March | 4.2 |
| April | 4.2 |
| May | 4.1 |
| June | 3.7 |
| July | 3.4 |
| August | 3.3 |
| September | 3.5 |
| October | 3.4 |
| November | 3.1 |
| December | 2.9 |