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SeaTac Visitors Guide

For foreign visitors

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SeaTac weather essentials

Month

High

Low

Precip

Jun

63°F 17°C

46°F 7°C

1 in 4 cm

Jul

70°F 21°C

50°F 10°C

1 in 2 cm

Aug

70°F 21°C

50°F 10°C

1 in 2 cm

Sep

64°F 17°C

47°F 8°C

1 in 4 cm

Oct

54°F 12°C

41°F 5°C

4 in 9 cm

Nov

46°F 7°C

37°F 2°C

5 in 13 cm

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