Last updated: June 24, 2025
In Savanna, United States, the average temperature in April hovers around 9°C (48°F), with extremes ranging from a chilly -9°C (17°F) to a warm 28°C (82°F). Expect about 100 mm (3.9 in) of precipitation spread over 12 days, contributing to a high average humidity of 82%. Whether you’re braving the cold or enjoying a warm spell, be prepared for the atmospheric conditions this month!
In April in Savanna, the average temperature is 9°C (48°F), with maximums reaching 28°C (82°F) and minimums dropping as low as -9°C (17°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack both warm and light clothing for their visit.
In Savanna in April, the precipitation amount is 100 mm (3.9 in) over the course of 12 days.
In Savanna in April, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.
In Savanna in April, 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 Savanna.
UV Risk Categories
Weather in Savanna varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Savanna, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -5°C (23°F) | 56 mm (2.2 inches) | 81% | moderate |
| February Weather | -4°C (25°F) | 59 mm (2.3 inches) | 81% | moderate |
| March Weather | 4°C (39°F) | 80 mm (3.1 inches) | 81% | high |
| April Weather | 9°C (48°F) | 100 mm (3.9 inches) | 82% | very high |
| May Weather | 16°C (61°F) | 142 mm (5.6 inches) | 78% | very high |
| June Weather | 22°C (73°F) | 127 mm (5.0 inches) | 81% | very high |
| July Weather | 24°C (76°F) | 83 mm (3.3 inches) | 79% | very high |
| August Weather | 23°C (73°F) | 91 mm (3.6 inches) | 77% | very high |
| September Weather | 20°C (67°F) | 119 mm (4.7 inches) | 78% | very high |
| October Weather | 12°C (53°F) | 111 mm (4.4 inches) | 78% | high |
| November Weather | 3°C (38°F) | 48 mm (1.9 inches) | 87% | moderate |
| December Weather | -1°C (31°F) | 48 mm (1.9 inches) | 84% | low |