Port Heiden weather by month & the best time to visit
United States · seaside town · subarctic climate
Port Heiden is short on reliable sunshine. Its best month is August (Score 33/100) — for stronger sun, try one of the nearby alternatives.
When is the best time to visit Port Heiden?
Port Heiden never gets truly sunny weather: August is as good as it gets at 33/100, and January is the low point (0/100). If sunshine is the point of the trip, the nearby alternatives do better.
How sunny is Port Heiden?
Port Heiden isn't a sunny place by world standards: about 1,147 hours of sunshine a year. August (33/100) is noticeably better than January (0). It ranks #568 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 916 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | -1° / 30°F | -5° / 23°F | 58 mm | 0 | 0° / 32°F |
| February | 0 | 0° / 32°F | -4° / 25°F | 60 mm | 0 | -1° / 30°F |
| March | 0 | -1° / 30°F | -5° / 23°F | 47 mm | 1 | -1° / 30°F |
| April | 0 | 3° / 37°F | -1° / 30°F | 56 mm | 2 | 0° / 32°F |
| May | 0 | 7° / 45°F | 3° / 37°F | 60 mm | 3 | 4° / 39°F |
| June | 18 | 11° / 52°F | 6° / 43°F | 63 mm | 4 | 8° / 46°F |
| July | 29 | 13° / 55°F | 9° / 48°F | 81 mm | 4 | 11° / 52°F |
| August | 33 | 14° / 57°F | 10° / 50°F | 102 mm | 3 | 12° / 54°F |
| September | 22 | 12° / 54°F | 8° / 46°F | 110 mm | 2 | 11° / 52°F |
| October | 0 | 7° / 45°F | 4° / 39°F | 106 mm | 1 | 7° / 45°F |
| November | 0 | 3° / 37°F | 0° / 32°F | 87 mm | 0 | 4° / 39°F |
| December | 0 | 1° / 34°F | -3° / 27°F | 86 mm | 0 | 3° / 37°F |
Sea temperature in Port Heiden by month
The sea off Port Heiden is warmest in August at around 12°C / 54°F, and coolest in February at -1°C / 30°F. It never reaches comfortable swimming temperatures (21°C+). Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearest destinations
Port Heiden: questions and answers
What kind of destination is Port Heiden?
Port Heiden is a seaside town in United States with a subarctic climate — the sea reaches 12°C at its warmest.
How many hours of sunshine does Port Heiden get a year?
Port Heiden gets about 1,147 hours of sunshine a year, at its best around August.
When is the best time to visit Port Heiden?
Port Heiden is short on reliable sunshine — its best month is only August at 33/100. For a sunnier trip, see the nearest strong-sun alternatives listed on the page.
What is the least sunny month in Port Heiden?
January is the least sunny month in Port Heiden, scoring 0/100 with about 58 mm of rain.
What is the sea temperature in Port Heiden?
The sea in Port Heiden ranges from about -1°C (February) to 12°C (August). Month-by-month sea temperatures are on this page.
How strong is the sun in Port Heiden?
The typical midday UV index in Port Heiden peaks around 4 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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