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SunnyDays

GR · JTR

Santorini weather this week

Santorini, GR Passport worthy

Santorini scores 9.0 out of 10 and has exactly one genuinely clear day in the next 16.

9.0/10
Mixed
1 genuinely clear day, 2 partly cloudy, 1 overcast, 0 wet, 0 stormy — out of 16 forecast days.
Bright days 3 vs dull days 1. Bright wins.
We are not showing a flattering tier word here. Why the score and the sky can disagree.

The model gives this week 9.0 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 1 genuinely clear day and 1 dull one, expect grey skies. We are showing you the number and the contradiction rather than only the number.

4-day window, zero rain — Sunshine, day after day — 4-days run, 1 genuinely clear, 2 partly cloudy, 71°F

The next 16 days in Santorini

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 16 days (48%), not the lowest, because the worst number is the useful one.

Booking window Mon 19 Oct–Thu 22 Oct: 9.0/10 for those days alone. The 16-day outlook score (9.0) covers the full table below and includes days outside that window.

Santorini daily forecast, Thu 8 Oct to Fri 23 Oct (16 days total). Best single day scores 9.9; worst scores 4.0. A lone good day cannot carry the week.
Day High Low Rain chance Sky Day score
75°F 63°F 0% Partly cloudy partly 9.3
Partly cloudy, 75°F, not a drop of rain.
76°F 66°F 0% Partly cloudy partly 9.3
Partly cloudy, 76°F, not a drop of rain.
77°F 67°F 3% Overcast cloudy 8.5
Overcast, 77°F, dry as a bone.
73°F 67°F 23% Rain showers wet 6.6
Rain showers, 73°F — it'll pass.
75°F 68°F 25% Rain showers wet 6.6
Rain showers, 75°F — it'll pass.
72°F 67°F 35% Rain showers wet 6.6
Rain showers, 72°F — it'll pass.
66°F 58°F 48% Thunderstorm storm 4.0
Thunderstorms, 66°F — Mother Nature has opinions.
66°F 60°F 40% Light drizzle wet 6.0
Light drizzle, 66°F — it'll pass.
68°F 65°F 20% Light drizzle wet 7.0
Light drizzle, 68°F — it'll pass.
73°F 64°F 10% Overcast cloudy 8.5
Overcast, 73°F, dry as a bone.
74°F 66°F 11% Light drizzle cloudy 7.0
Overcast, 74°F, dry as a bone.
71°F 66°F 11% Partly cloudy partly 9.2
Partly cloudy, 71°F, not a drop of rain.
70°F 66°F 18% Overcast cloudy 8.0
Overcast, 70°F, dry as a bone.
70°F 66°F 13% Partly cloudy partly 9.1
Partly cloudy, 70°F, not a drop of rain.
71°F 66°F 10% Clear clear 9.9
Clear skies, 71°F — pack a layer.
68°F 60°F 23% Light drizzle wet 6.9
Light drizzle, 68°F — it'll pass.

How this week got its score

  • 4 forecast days: 1 clear/mainly clear, 2 partly cloudy, 1 overcast, 0 wet (fog/drizzle/rain/showers), 0 stormy.
  • Trimmed mean of day scores 9.1 × 0.55 = 4.98
  • Worst day drag: worst day is 8.0 × 0.25 = 2.00 - one bad day cannot be averaged away.
  • Longest consecutive run of good days (≥7.0) is 4/4 = 100% coverage × 0.20 = 2.00
  • Best single day is 9.9 but it only counts through the trimmed mean - a lone great day cannot carry the window.

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

Getting to Santorini

The nearest airport we price is JTR. From New York City that is about 10h 33m in the air out of ISP, 5026 miles. Flight times from 55 other departure metros are on the search page.

Where to stay in Santorini

15 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?

Santorini scores 9.0 out of 10 and has exactly one genuinely clear day in the next 16. That holds up. Check the daily rows above for which specific days carry the sun, and price it from your own airport.

Frequently asked

Is it raining in Santorini this week?

No. The current 16-day forecast for Santorini shows no rain or storm days, peaking at 48% chance on the worst day. Cloud is not the dealbreaker here — rain is, and none is forecast.

How many clear days does Santorini have this week?

One. Santorini has exactly one genuinely clear day in the next 16.

Is Santorini good for a trip this week?

Yes. Santorini scores 9.0/10 with 1 genuinely clear day out of 16 — bright days outnumber dull ones.

Santorini 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.

Santorini: clear-sky % by month, ERA5 2018–2025. n = days sampled.
Month Historically clear Sample (n)
January 0% n=248 all destinations →
February 0% n=226 all destinations →
March 2% n=248 all destinations →
April 14% n=240 all destinations →
May 52% n=248 all destinations →
June 89% n=240 all destinations →
July 95% n=248 all destinations →
August 93% n=248 all destinations →
September 86% n=240 all destinations →
October 59% n=248 all destinations →
November 16% n=240 all destinations →
December 0% n=248 all destinations →

Each month links to the detailed almanac page for Santorini 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 2026-10-08T13:01:07.320349Z. 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.