Semiahmoo, WA
Unincorporated community in Whatcom County, Washington
Semiahmoo is a small unincorporated community in Whatcom County, Washington. It is 1.1 miles E of Blaine, the nearest town. Its ZIP code is 98230.
Semiahmoo at a glance
- State
- Washington
- County
- Whatcom County
- ZIP code
- 98230
- Nearest town
- Blaine (1.1 mi)
- Time zone
- America/Los Angeles
- Coordinates
- 48.9892, -122.7719
Weather in Semiahmoo now
Loading the National Weather Service forecast…
Semiahmoo weather by the hour
Semiahmoo weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Semiahmoo.
This week in Semiahmoo
Sunrise, sunset and moon in Semiahmoo
What is the weather usually like in Semiahmoo?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 73°F average high
- Januarycoldest month · 34°F average low
- 41.8 inprecipitation per year · 1,062 mm
- 9.3 insnowfall per year · 24 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Semiahmoo: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station BLAINE, WA US (USC00450729), adjusted for the elevation of Semiahmoo.
Semiahmoo weather month by month
Sunrise and sunset in Semiahmoo through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:57 AM | 4:43 PM | 8 h 46 min |
| February | 7:16 AM | 5:33 PM | 10 h 16 min |
| March | 7:21 AM | 7:17 PM | 11 h 56 min |
| April | 6:17 AM | 8:04 PM | 13 h 47 min |
| May | 5:26 AM | 8:48 PM | 15 h 22 min |
| June | 5:04 AM | 9:19 PM | 16 h 14 min |
| July | 5:21 AM | 9:12 PM | 15 h 50 min |
| August | 6:02 AM | 8:28 PM | 14 h 26 min |
| September | 6:46 AM | 7:25 PM | 12 h 39 min |
| October | 7:30 AM | 6:22 PM | 10 h 52 min |
| November | 7:19 AM | 4:32 PM | 9 h 12 min |
| December | 7:56 AM | 4:16 PM | 8 h 19 min |
Times for the 15th of each month, local time (America/Los Angeles).
What is the weather like in Semiahmoo?
Semiahmoo has a warm-summer mediterranean climate. The warmest month is July, with an average high of 73°F (23°C), and the coldest is January, with average lows of 34°F (1°C).
It gets about 41.8 inches (1,062 mm) of precipitation a year. The wettest month is January and the driest is August. Snow is common: about 9 inches fall in an average year.
The best time to visit Semiahmoo is June to September. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
Webcams near Semiahmoo
The closest live webcam is Blaine: I-5 at MP 276.2: D St, 1.1 miles NE of Semiahmoo.
Webcams: Windy.com. Distances in a straight line from Semiahmoo.
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Map of Semiahmoo, WA
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Semiahmoo Street View
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Questions about Semiahmoo
Where is Semiahmoo, WA?
Semiahmoo is an unincorporated community in Whatcom County, Washington, 1.1 miles E of Blaine.
What county is Semiahmoo in?
Semiahmoo is in Whatcom County, Washington.
What is the ZIP code of Semiahmoo, WA?
The ZIP code for Semiahmoo is 98230.
What is the nearest town to Semiahmoo?
Blaine, 1.1 miles away.
Are there webcams near Semiahmoo?
Yes. The closest is Blaine: I-5 at MP 276.2: D St, 1.1 miles away.
What is the hottest month in Semiahmoo?
July, with an average high of 73°F (23°C).
What is the coldest month in Semiahmoo?
January, with an average low of 34°F (1°C).
How much does it rain in Semiahmoo?
About 41.8 inches (1,062 mm) a year; the wettest month is January.
Does it snow in Semiahmoo?
Yes, about 9 inches of snow fall in an average year.
When is the best time to visit Semiahmoo?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Semiahmoo have?
Warm-summer mediterranean (Köppen Csb).
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