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SunnyDays

California · SBP

San Luis Obispo weather this week

San Luis Obispo, California

San Luis Obispo scores 8.1 out of 10 and has no genuinely clear day in the next 7.

8.1/10
No clear day
<built-in method clear of dict object at 0x7ce262ac0a40> genuinely clear days, 1 partly cloudy, 6 overcast, 0 wet, 0 stormy — out of 7 forecast days.
Bright days 1 vs dull days 6. Dull wins, so we do not call this a good week.
We are not showing a flattering tier word here. Why the score and the sky can disagree.

The model gives this week 8.1 out of 10 because it is warm and largely rain-free, and those are the two things the score measures. It is not measuring sunshine. With 0 genuinely clear days and 6 dull ones, expect grey skies. We are showing you the number and the contradiction rather than only the number.

7 cloudy / 0 wet days, no clear days in 7 — Warm, dry, and the sun never shows — zero clear days in 7

The next 7 days in San Luis Obispo

Every number below is the forecast we hold, rendered as text — nothing here is drawn on a canvas or filled in by JavaScript. The rain figure is the highest chance across all 7 days (6%), not the lowest, because the worst number is the useful one.

Booking window Sat 8 Aug–Mon 10 Aug: 7.6/10 for those days alone. The 7-day outlook score (8.1) covers the full table below and includes days outside that window.

San Luis Obispo daily forecast, Sat 8 Aug to Fri 14 Aug (7 days total). Best single day scores 9.3; worst scores 7.0. A lone good day cannot carry the week.
Day High Low Rain chance Sky Day score
77°F 58°F 0% Fog cloudy 7.0
Cloudy but warm & dry
85°F 55°F 1% Fog cloudy 7.0
Cloudy but warm & dry
83°F 57°F 1% Fog cloudy 7.0
Cloudy but warm & dry
87°F 64°F 0% Partly cloudy partly 9.3
Partly cloudy and dry
82°F 62°F 1% Overcast cloudy 8.5
Cloudy but warm & dry
76°F 57°F 4% Overcast cloudy 8.5
Cloudy but warm & dry
79°F 56°F 6% Overcast cloudy 8.5
Cloudy but warm & dry

How this week got its score

  • 7 forecast days: 0 clear/mainly clear, 1 partly cloudy, 6 overcast, 0 wet (fog/drizzle/rain/showers), 0 stormy.
  • Trimmed mean of day scores 7.9 × 0.55 = 4.35
  • Worst day drag: worst day is 7.0 × 0.25 = 1.75 - one bad day cannot be averaged away.
  • Longest consecutive run of good days (≥7.0) is 7/7 = 100% coverage × 0.20 = 2.00
  • Best single day is 9.3 but it only counts through the trimmed mean - a lone great day cannot carry the window.
  • Advertised 3-day window (2026-08-08→2026-08-10) scores 7.6 on its own.
  • Legacy gate counted 7/7 days as "perfect sun"; this model counts 0 genuinely clear.

The full model, including why a single great day cannot rescue a bad week, is on the methodology page.

Getting to San Luis Obispo

The nearest airport we price is SBP. From New York City that is about 5h 33m in the air out of SWF, 2527 miles. Flight times from 55 other departure metros are on the search page.

Where to stay in San Luis Obispo

3 properties we currently hold live rates for, in supplier order. The nightly rate shown is what the supplier returned at the last refresh for the window above — it is a held rate, not a quote, and it moves.

So, should you go?

San Luis Obispo scores 8.1 out of 10 and has no genuinely clear day in the next 7. There is some sun in this window, but not much. Compare it against the rest of the list before booking.

San Luis Obispo by month — 8-year ERA5 history

Historical clear-sky percentages from the ERA5 reanalysis (2018–2025). This is history, not a forecast — the 7-day forecast above is this week. They can and do differ.

San Luis Obispo: clear-sky % by month, ERA5 2018–2025. n = days sampled.
Month Historically clear Sample (n)
January 11% n=248 all destinations →
February 18% n=226 all destinations →
March 10% n=248 all destinations →
April 26% n=240 all destinations →
May 27% n=248 all destinations →
June 54% n=240 all destinations →
July 77% n=248 all destinations →
August 90% n=248 all destinations →
September 79% n=240 all destinations →
October 71% n=248 all destinations →
November 40% n=240 all destinations →
December 12% n=248 all destinations →

Each month links to the detailed almanac page for San Luis Obispo in that month. The “all destinations” column links to the full ranking across all destinations for that month.

Forecast data from Open-Meteo, last refreshed 2026-08-09T05:01:05.311896Z. Hotel names and rates come from LiteAPI and change constantly; the rate shown is the rate we held at refresh time, not a quote. Scores are forecasts, not guarantees, and the whole model is published on our methodology page.