Weekly note
Seattle
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Seattle from Lima

7,996 km, about 10h 40m in the air. Every month scored for the weather at Seattle and for the holidays that crowd it out at both ends.

  1. Seattle in January: avoid
  2. Seattle in February: avoid
  3. Seattle in March: ok
  4. Seattle in April: ok
  5. Seattle in May: sweet spot
  6. Seattle in June: sweet spot, busy
  7. Seattle in July: sweet spot, busy
  8. Seattle in August: sweet spot, busy
  9. Seattle in September: good
  10. Seattle in October: ok
  11. Seattle in November: avoid
  12. Seattle in December: avoid
  • Sweet spot
  • Good
  • OK
  • Avoid
  • Busy
Go in May–Aug — these months score within a whisker of each other; 25C max, 4 rainy days. Sep is the next best.

Plan this trip

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Flights from Lima

Travel insurance

Mobile data (eSIM)

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Month by month from Lima

MonthMax °CRain days Crowds Typical fare VerdictWhy
Jan 8° 16d 80 $991 avoid monsoon: 16 rainy days, 188mm
Feb 7° 13d 100 — avoid 7C max, 13 rainy days
Mar 11° 14d 80 — ok 11C max, 14 rainy days
Apr 14° 12d 80 — ok 14C max, 12 rainy days
May 18° 9d 82 — sweet spot 18C max, 9 rainy days
Jun 21° 7d 65 — sweet spot busy busier than usual
Jul 25° 2d 45 — sweet spot busy busier than usual
Aug 25° 4d 65 — sweet spot busy busier than usual
Sep 21° 8d 75 — good 21C max, 8 rainy days
Oct 15° 11d 80 — ok 15C max, 11 rainy days
Nov 10° 16d 80 — avoid monsoon: 16 rainy days, 189mm
Dec 8° 17d 80 — avoid monsoon: 17 rainy days, 213mm

Rain days are the days with at least 2 mm of rain.

Crowds is a score out of 100 where higher is quieter. It counts public-holiday clusters in PE as well as at Seattle, which is why this table differs from the same one read from another country. A busy month is a crowded one, not a bad one — usually it is crowded because the weather is good. Crowds alone never make a month “avoid”: that is reserved for weather worth skipping.

How busy it gets

Busiest from June to August; quietest from November to February.

The year in Seattle

Seattle experiences a temperate maritime climate, characterized by cool, wet winters and warm, dry summers. Travelers should be prepared for unpredictable weather, especially in the shoulder seasons.

Busiest
mid Jun to mid Sep — This period features the warmest weather and longest days, attracting the highest number of tourists.
Quieter, still good
early May to mid Jun — Late spring offers pleasant weather with fewer tourists.
mid Sep to mid Oct — Early autumn provides mild temperatures but fewer visitors compared to summer.

Written by a language model from the climate figures above. The month-by-month table is measured — ten years of ERA5 readings and published holiday calendars — and where the two disagree, the table is the one to believe.

Seattle from anywhere · everywhere from Lima · Fares in USD: no free rate exists for PEN.

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