Last updated: August 23, 2025
In December, the average temperature in Obama, Japan hovers around 8°C (46°F). Expect the minimum to drop to -1°C (31°F), while the maximum can reach up to 20°C (69°F). With an average precipitation amount of 173 mm (6.8 in) spread over about 22 days, you'll want to be prepared for rainy spells. Additionally, the air is quite humid, with an average humidity level of 83%.
In December in Obama, the average temperature is 8°C (46°F), with maximums reaching 20°C (69°F) and minimums dropping as low as -1°C (31°F). This climate offers a cool but manageable environment for travelers seeking to explore the local attractions.
In Obama in December, the precipitation amount is 173 mm (6.8 in) spread over 22 days.
In Obama in December, humidity is 83%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making even short outings feel quite uncomfortable and prompting travelers to bundle up and seek shelter more frequently.
In Obama in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Obama, you can check the information here.
UV Risk Categories
Weather in Obama varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Obama, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 5°C (41°F) | 138 mm (5.4 inches) | 82% | moderate |
| February Weather | 5°C (42°F) | 122 mm (4.8 inches) | 79% | moderate |
| March Weather | 9°C (48°F) | 159 mm (6.3 inches) | 74% | very high |
| April Weather | 12°C (54°F) | 177 mm (7.0 inches) | 76% | very high |
| May Weather | 17°C (63°F) | 176 mm (6.9 inches) | 83% | extreme |
| June Weather | 21°C (70°F) | 207 mm (8.2 inches) | 87% | extreme |
| July Weather | 25°C (78°F) | 359 mm (14.1 inches) | 93% | extreme |
| August Weather | 27°C (81°F) | 243 mm (9.6 inches) | 91% | extreme |
| September Weather | 23°C (74°F) | 233 mm (9.2 inches) | 87% | very high |
| October Weather | 18°C (65°F) | 268 mm (10.6 inches) | 85% | high |
| November Weather | 13°C (56°F) | 107 mm (4.2 inches) | 83% | moderate |
| December Weather | 8°C (46°F) | 173 mm (6.8 inches) | 83% | moderate |