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SunnyDays

ERA5 almanac — 8 years of real data

Newport in August

Newport in August: 33% of days see measurable rain, 77°F average high, 39% of days historically clear (n=248, ERA5 2018–2025).

Newport in August is historically a poor month for sun: only 39% of days clear across 8 years (n=248, avg high 77°F). 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 Newport 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 August

Clear-sky percentage for Newport in August, split by half-month. “n” is the number of days sampled across 8 years (2018–2025).
Period % Clear days Sample (n) Avg high
Early August
1st–15th		 42% n=120 77°F
Late August
16th–end		 37% n=128 77°F
Full month average 39% n=248 77°F

Sunshine & warmth in August

A second measure using actual sunshine hours (ERA5 sunshine_duration), not the daily weather code. A Lowcountry day with 12 hours of sun and a 25-minute afternoon storm is counted below as a warm, sunny day — because it was. How we define this.

Sunshine-based metrics for Newport in August. Primary: % of days ≥ 72°F with > 6 h of sunshine.
Period Warm & sunny (≥72°F, >6 h sun) Sample (n)
Early August
1st–15th		 86% n=120
Late August
16th–end		 78% n=128
Full month average 82% n=248
12.5 h median sunshine per day 86% of days exceed 8 h sunshine 33% of days see ≥ 1 mm rain — rain is not hidden
Comparison (old vs new): WMO-code “clear” bar: 39%. Sunshine-based “warm & sunny”: 82%. The 43-point gap is from brief afternoon convective storms that stamp the whole day as “rain” in the WMO code but leave the bulk of the sunshine untouched.

Bottom line

Newport is mostly overcast in August historically: only 39% of days are clear across 8 years (n=248), avg high 77°F. Most visitors this month will see more clouds than sun.

Every month in Newport

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

Historical clear-sky % for Newport, all months, ERA5 2018–2025.
Month % Clear Sample (n)
January 0% n=248 All destinations →
February 0% n=226 All destinations →
March 0% n=248 All destinations →
April 1% n=240 All destinations →
May 4% n=248 All destinations →
June 26% n=240 All destinations →
July 47% n=248 All destinations →
August ← this page 39% n=248 All destinations →
September 24% n=240 All destinations →
October 1% n=248 All destinations →
November 0% n=240 All destinations →
December 0% n=248 All destinations →

Frequently asked

Does it rain in Newport in August?

Sometimes. Newport sees measurable rain on 33% of days in August historically (n=248 days, ERA5 2018–2025) — not frequent enough to plan around, but not negligible either.

Is Newport good for sun in August?

It's mixed. Newport in August is clear on 39% of days historically (avg high 77°F, n=248 days, ERA5 2018–2025) — the outcome varies year to year.

How Newport compares in August

Head-to-head clear-sky comparisons against destinations travelers plausibly weigh against Newport this month — same passport tier, similar flight distance, both sides from the same 8-year ERA5 record.

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.