Last updated: June 24, 2025
In Indian River, United States, the average temperature in December hovers around -3°C (27°F), with a minimum dipping as low as -24°C (-10°F) and a maximum reaching 15°C (59°F). During this chilly month, expect about 69 mm (2.7 in) of precipitation spread over 13 days, contributing to an average humidity of an impressive 89%. Stay warm and prepared!
In December in Indian River, the average temperature is -3°C (27°F), with a maximum reaching 15°C (59°F) and a minimum dropping as low as -24°C (-10°F). Travelers should be prepared for a wide range of temperatures and dress accordingly for winter conditions.
In Indian River in December, the precipitation amount is 69 mm (2.7 in) over the course of 13 days.
In Indian River in December, humidity is 89%. With an average temperature of -3°C (27°F), this humidity feels like a biting chill that seeps into your bones, making outdoor activities uncomfortable and breath a visible frost as you navigate through the wintery landscape.
In Indian River in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Indian River, you can visit Hourly UV Index in Indian River.
UV Risk Categories
Weather in Indian River varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Indian River, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 48 mm (1.9 inches) | 92% | low |
| February Weather | -6°C (21°F) | 60 mm (2.4 inches) | 91% | moderate |
| March Weather | -2°C (29°F) | 58 mm (2.3 inches) | 87% | moderate |
| April Weather | 4°C (40°F) | 94 mm (3.7 inches) | 85% | high |
| May Weather | 12°C (54°F) | 95 mm (3.8 inches) | 79% | very high |
| June Weather | 18°C (65°F) | 101 mm (4.0 inches) | 75% | very high |
| July Weather | 21°C (71°F) | 89 mm (3.5 inches) | 75% | very high |
| August Weather | 20°C (68°F) | 95 mm (3.8 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 84 mm (3.3 inches) | 79% | high |
| October Weather | 9°C (49°F) | 135 mm (5.3 inches) | 85% | moderate |
| November Weather | 2°C (36°F) | 71 mm (2.8 inches) | 88% | moderate |
| December Weather | -3°C (27°F) | 69 mm (2.7 inches) | 89% | low |