Vitamin D in Oregon in January: sun, UV and what to expect
Too cold Too cold here in January: afternoon highs average only 9.0°C, which is too chilly for sunbathing in light clothing. Try another month or a warmer destination.
0.0 hsun window (UV 2.5+)
1.2peak UV Index
–to a full dose
9°Cafternoon high
22/30rainy days
15/30sunny days
How long in the sun in January?
- Even at midday the UV Index stays below 2.5 for most of January, so sunbathing makes little or no vitamin D. Oily fish, fortified food or a supplement matter more. Ask your doctor.
- Water, sand and light surfaces reflect UV, so at the beach you get a little more sun than the number suggests, for the good and the bad.
| Skin type | Full dose, age 30 | Full dose, age 65 | Time to burn |
|---|---|---|---|
| Type I | – | – | – |
| Type II | – | – | – |
| Type III | – | – | – |
| Type IV | – | – | – |
| Type V | – | – | – |
| Type VI | – | – | – |
Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Astoria, the median coastal place. Time to burn is the time to reach one minimal erythemal dose and does not depend on age. A rough planning guide, not medical advice.
Places in Oregon in January
| Place | Rating | Sun window | Full dose | Afternoon high | Rainy days |
|---|---|---|---|---|---|
| Cannon Beach | Too cold | 0.0 h | – | 10°C | 18/30 |
| Seaside | Too cold | 0.0 h | – | 10°C | 23/30 |
| Astoria | Too cold | 0.0 h | – | 9°C | 22/30 |
| Newport | Too cold | 0.0 h | – | 10°C | 18/30 |
| Lincoln City | Too cold | 0.0 h | – | 11°C | 18/30 |