Last updated: June 24, 2025
In August, the average temperature in West Haven-Sylvan, United States is a comfortable 21°C (70°F). However, you might encounter a minimum of 9°C (48°F) and a scorching maximum of 40°C (104°F). Expect a modest precipitation of 8 mm (0.3 in) over just 2 days and enjoy a relatively high average humidity of 74%.
In August in West Haven-Sylvan, the average temperature is 21°C (70°F). Maximum temperatures can reach 40°C (104°F), while the minimum can drop to as low as 9°C (48°F). This makes West Haven-Sylvan an ideal destination for travelers seeking warm weather, though it's wise to pack for a range of temperatures.
In West Haven-Sylvan in August, the precipitation amount is 8 mm (0.3 in) over the course of 2 days.
In West Haven-Sylvan in August humidity is 74%. With an average temperature of 21°C (70°F), this humidity feels like a warm, moist embrace, making outdoor activities both invigorating and slightly draining, so travelers should stay hydrated and take breaks often.
In West Haven-Sylvan in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in West Haven-Sylvan.
UV Risk Categories
Weather in West Haven-Sylvan varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in West Haven-Sylvan, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (42°F) | 163 mm (6.4 inches) | 85% | low |
| February Weather | 5°C (41°F) | 172 mm (6.8 inches) | 84% | moderate |
| March Weather | 8°C (46°F) | 135 mm (5.3 inches) | 85% | moderate |
| April Weather | 11°C (51°F) | 117 mm (4.6 inches) | 83% | high |
| May Weather | 14°C (58°F) | 58 mm (2.3 inches) | 83% | very high |
| June Weather | 18°C (64°F) | 46 mm (1.8 inches) | 83% | very high |
| July Weather | 21°C (69°F) | 6 mm (0.2 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 8 mm (0.3 inches) | 74% | very high |
| September Weather | 18°C (64°F) | 62 mm (2.4 inches) | 71% | high |
| October Weather | 12°C (53°F) | 105 mm (4.1 inches) | 81% | moderate |
| November Weather | 8°C (47°F) | 155 mm (6.1 inches) | 87% | moderate |
| December Weather | 5°C (41°F) | 183 mm (7.2 inches) | 87% | low |