Last updated: June 24, 2025
In April, the average temperature in Mountain View, United States is a pleasant 15°C (59°F). However, temperatures can fluctuate significantly, ranging from a chilly -2°C (29°F) to a warm 31°C (87°F). Expect 144 mm (5.7 in) of precipitation spread across 11 days, contributing to an average humidity level of 81%. Whether you're hiking in the sun or enjoying a cozy indoor day, be prepared for diverse weather!
In April in Mountain View, the average temperature is 15°C (59°F). The maximum can reach 31°C (87°F), and the minimum can be as low as -2°C (29°F). Be prepared for a wide range of temperatures when traveling, so pack layers to ensure comfort throughout your trip.
In Mountain View in April, the precipitation amount is 144 mm (5.7 in) during 11 days, indicating a relatively wet period for the region.
In Mountain View in April humidity is 81%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket draped over you, making traveling quite uncomfortable as you constantly wipe away beads of sweat and feel the stickiness clinging to your clothes.
In Mountain View in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Mountain View.
UV Risk Categories
Weather in Mountain View varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Mountain View, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 4°C (39°F) | 78 mm (3.1 inches) | 84% | moderate |
| February Weather | 6°C (42°F) | 131 mm (5.2 inches) | 83% | high |
| March Weather | 11°C (53°F) | 137 mm (5.4 inches) | 81% | very high |
| April Weather | 15°C (59°F) | 144 mm (5.7 inches) | 81% | very high |
| May Weather | 20°C (69°F) | 174 mm (6.9 inches) | 83% | extreme |
| June Weather | 25°C (77°F) | 100 mm (3.9 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 89 mm (3.5 inches) | 81% | extreme |
| August Weather | 26°C (79°F) | 116 mm (4.6 inches) | 74% | very high |
| September Weather | 23°C (75°F) | 82 mm (3.2 inches) | 71% | very high |
| October Weather | 17°C (62°F) | 103 mm (4.1 inches) | 76% | high |
| November Weather | 9°C (49°F) | 77 mm (3.0 inches) | 84% | moderate |
| December Weather | 7°C (45°F) | 97 mm (3.8 inches) | 88% | moderate |