If you plan to visit the Seattle Space Needle and other attractions, buying a CityPass is much more cost-effective than buying individual tickets. The Space Needle allows you to go up twice within 24 hours: once during the day for daytime views and once at night for nighttime views. However, it's highly recommended to go before sunset to see the daytime, sunset, and nighttime views simultaneously. A boat tour is also highly recommended; seeing Seattle from the sea is a fantastic experience.
Choosing an eSIM that allows phone calls this time is very convenient for local communication.
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United States Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
United States year round climate
Spring (March–May): Average 4.1–16.9°C, the climate gradually transitions from cold to warm, with rainfall gradually increasing. March still has a chilly feel, while May is warm and comfortable. Common activities: Outdoor walks, flower viewing. Suggested clothing: Layered clothing, such as warm underlayers, jackets, and comfortable long pants.
Summer (June–August): Average 23.2–25.4°C, warm climate, July is the wettest month with heavier rainfall. Common activities: Camping, hiking, water activities. Suggested clothing: Light and breathable clothing, short sleeves, shorts, and rain gear.
Autumn (September–November): Average 12.9–21.2°C, the climate transitions from warm to cool, with decreasing rainfall. September remains comfortably warm, while November gradually turns cold. Common activities: Autumn scenery viewing, outdoor leisure. Suggested clothing: Light jackets, long-sleeved shirts, and an extra layer for the mornings and evenings.
Winter (December–February): Average -3.4–0.5°C, cold climate, with less rainfall. January is the coldest month, and warmth is essential. Common activities: Indoor activities, skiing (if there are nearby ski resorts). Suggested clothing: Heavy coats, scarves, gloves, hats, and other warm clothing.
United States climatological average
Annual average temperature: approx. 11.8°C / Annual rainfall: approx. 448 mm / Summer humidity: 60%–70% / Rainiest month: July
United States monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
-3.4°C
28.5
February
0.5°C
21.3
March
4.1°C
32
April
11.3°C
16.6
May
16.9°C
71.2
June
23.2°C
69.6
July
25.4°C
81.6
August
25.4°C
33.5
September
21.2°C
34.1
October
12.9°C
16.3
November
4.7°C
22.7
December
-0.5°C
20.9
United States weather for the next seven days
2/1
Sunday
Sunny
15.9°C/-4.6°C
2/2
Monday
Overcast
14.3°C/-1.9°C
2/3
Tuesday
Sunny
9.9°C/-3.6°C
2/4
Wednesday
Patchy rain nearby
7.7°C/-2.6°C
2/5
Thursday
Sunny
15.5°C/0.7°C
2/6
Friday
Sunny
10.1°C/3.5°C
2/7
Saturday
Partly Cloudy
11.1°C/1.1°C
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