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SunnyDays

ERA5 almanac — 8 years of real data

30A / Seaside in November

30A / Seaside in November: rain frequency data not yet backfilled for this month, 70°F average high, 24% of days historically clear (n=240, ERA5 2018–2025).

30A / Seaside in November is historically a poor month for sun: only 24% of days clear across 8 years (n=240, avg high 70°F). October is the clearest month for 30A / Seaside historically. Historical average, not a forecast.

What you are reading: 8-year historical averages from the ERA5 reanalysis, not a forecast. A month that is historically 90% clear can still be overcast on your specific trip. For this week’s actual forecast, see the live 30A / Seaside page. Both can be true at once: “historically strong in this month; this particular week is not.” We label which is which.

Early vs. Late November

Clear-sky percentage for 30A / Seaside in November, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early November
1st–15th		 29% n=120 70°F
Late November
16th–end		 19% n=120 70°F
Full month average 24% n=240 70°F

Bottom line

30A / Seaside is mostly overcast in November historically: only 24% of days are clear across 8 years (n=240), avg high 70°F. If you want sun in 30A / Seaside, October is historically much better. Most visitors this month will see more clouds than sun.

→ See all destinations in October — historically the best month for sun in 30A / Seaside.

Every month in 30A / Seaside

Compare across all months with data. Numbers are historical clear-sky %.

Historical clear-sky % for 30A / Seaside, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 1% n=248 All destinations →
February 5% n=226 All destinations →
March 12% n=248 All destinations →
April 41% n=240 All destinations →
May 42% n=248 All destinations →
June 16% n=240 All destinations →
July 9% n=248 All destinations →
August 12% n=248 All destinations →
September 32% n=240 All destinations →
October 51% n=248 All destinations →
November ← this page 24% n=240 All destinations →
December 4% n=248 All destinations →

Frequently asked

Is 30A / Seaside good for sun in November?

Not usually. 30A / Seaside is historically overcast in November: only 24% of days are clear (avg high 70°F, n=240 days, ERA5 2018–2025). October is historically far better for sun here.

All percentages are historical averages from the ERA5 reanalysis via Open-Meteo, 8 full years (2018–2025). “Clear” means avg high ≥ 72 °F, precipitation < 1 mm, and a non-precipitation weather code. This is history, not a forecast. The live 7-day outlook for any destination is on its own page and may differ from the long-run average. Data from Open-Meteo.