Cannon Beach
Haystack Rock and a charming art town.
Vitamin D in Oregon: best months for sun and a travel guide
There is no month we can recommend for a beach stay in Oregon. The sun is strong enough for vitamin D (at best a full dose takes about 7 minutes at midday for skin type III at age 30), but it is too cool all year.
Oregon month by month
Oregon is rated at its median coastal place, for skin type III at age 30. Click a month for the details.
| Month | Rating | Sun window | Peak UV | Full dose, age 30 | Full dose, age 65 | Afternoon high | Rainy days |
|---|---|---|---|---|---|---|---|
| January | Too cold | 0.0 h | 1.2 | – | – | 9°C | 22/30 |
| February | Too cold | 1.1 h | 2.1 | – | – | 10°C | 16/30 |
| March | Too cold | 4.3 h | 3.9 | 14 min | 26 min | 11°C | 16/30 |
| April | Too cold | 5.9 h | 5.1 | 10 min | 20 min | 13°C | 12/30 |
| May | Too cold | 7.2 h | 6.1 | 9 min | 16 min | 14°C | 6/30 |
| June | Too cold | 8.4 h | 6.7 | 8 min | 15 min | 16°C | 3/30 |
| July | Too cold | 9.1 h | 7.2 | 7 min | 14 min | 20°C | 0/30 |
| August | Too cold | 8.0 h | 6.3 | 8 min | 16 min | 19°C | 3/30 |
| September | Too cold | 6.1 h | 5.0 | 11 min | 20 min | 20°C | 3/30 |
| October | Too cold | 3.1 h | 3.2 | 17 min | 31 min | 16°C | 11/30 |
| November | Too cold | 0.3 h | 1.9 | – | – | 11°C | 19/30 |
| December | Too cold | 0.0 h | 1.4 | – | – | 10°C | 15/30 |
Sun window is the number of hours a day with UV Index 2.5 or higher. Full dose is the minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, for skin type III. Rainy days are days with at least 1 mm out of 30.
Travel guide: why go to Oregon
Why go
Oregon has a wild, rugged, forested coast of sea stacks and dunes, loved for walking, rather than for swimming.
Best for
Nature lovers, photographers and road-trippers.
What to expect
A cool sea and cool, windy beaches, with the best weather in July to September, and heavy rain in winter. Storm watching is popular from November to March.
Places in Oregon
Each place has its own climate, so its best months can differ from the country as a whole.
Seaside
Classic beach town with a promenade and arcades.
Astoria
Historic river-mouth port with a column and film sets.
A historic fishing town at the mouth of the Columbia River, boasting many shipwrecks in the area, site of The Goonies
Newport
Working harbour with an aquarium and a lighthouse.
Centrally located on the Oregon Coast, with an aquarium and marine center, attracting those curious about the coast and sea
Lincoln City
Long sandy beach with kite festivals.
Some short descriptions come from Wikivoyage (CC BY-SA 4.0).
Questions about vitamin D in Oregon
When is the best time to visit Oregon for vitamin D?
There is no month we can recommend for a beach stay in Oregon. The sun is strong enough for vitamin D (at best a full dose takes about 7 minutes at midday for skin type III at age 30), but it is too cool all year.
Can you get vitamin D from the sun in Oregon in January?
Not really. In January the sun in Oregon is too low or too weak to make useful vitamin D, and afternoons are cool. Plan your sun for other months.
How long do I need in the sun in Oregon?
In July, the best month, about 7 minutes at midday with a quarter of the body bare, for skin type III at age 30; about 14 minutes at age 65. Darker skin needs longer and fair skin burns sooner, so keep sessions short. This is an estimate for planning, not medical advice.
Which months should I avoid in Oregon?
For a beach stay, avoid the months when it is too cool all year.
What is the best place in Oregon for vitamin D?
In July the strongest sun of the places we rate is around Newport. Each place has its own rating, so open the place list to compare them.
Plan by month
- Jan Too cold
- Feb Too cold
- Mar Too cold
- Apr Too cold
- May Too cold
- Jun Too cold
- Jul Too cold
- Aug Too cold
- Sep Too cold
- Oct Too cold
- Nov Too cold
- Dec Too cold