When to go · SeaTac
SeaTac in January
Avoid month. Listed as a month to avoid: Nov–Apr (rainier, colder).
Key facts
- Verdict
- Avoid
- Temperature
- 7°C (45°F)45°F (7°C) / 0°C (32°F)32°F (0°C)
- average high / low
- Rain days
- 12
- Crowds
- Low
- United States overall
- Prices
- Low
- United States overall
Verdict
Listed as a month to avoid: Nov–Apr (rainier, colder).
Is another month better than January?
January is rated avoid. These months rate higher:
- MayGreatInside SeaTac's best window: May–Oct (mild weather, fewer rain days).
- JuneGreatInside SeaTac's best window: May–Oct (mild weather, fewer rain days).
- JulyGreatInside SeaTac's best window: May–Oct (mild weather, fewer rain days).
- AugustGreatInside SeaTac's best window: May–Oct (mild weather, fewer rain days).
Weather in January
- SeaTacHighs around 7 °C (45 °F), lows around 0 °C (32 °F), rain on about 12 daysHighs around 45 °F (7 °C), lows around 32 °F (0 °C), rain on about 12 days
Crowds and prices
- Crowds · United States overall
- Low
- Prices · United States overall
- Low
United States overall: Cold and snowy north and in the mountains; Florida, Hawaii and the desert Southwest are the picks.
Compare two months
Weather, crowds and prices for any two months in SeaTac, side by side.
Verdict
Jan: Avoid
May: Great (better)
Daytime high
Jan: 7 °C (45 °F)45 °F (7 °C)
May: 19 °C (66 °F)66 °F (19 °C)
Night low
Jan: 0 °C (32 °F)32 °F (0 °C)
May: 9 °C (48 °F)48 °F (9 °C)
Rain days
Jan: 12
May: 6 (better)
Crowds
Jan: Low
May: Medium
Prices
Jan: Low
May: Medium
Festivals listed
Jan: 0
May: 1
January: Listed as a month to avoid: Nov–Apr (rainier, colder).
May: Inside SeaTac's best window: May–Oct (mild weather, fewer rain days).
SeaTac: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm coat, hat and gloves for mornings and evenings
- A rain jacket or umbrella and shoes that dry fast