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Unalaska
Water Temperature in the Pacific Ocean in Unalaska, Alaska: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Unalaska in Alaska, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Unalaska
39°F
TODAY
39°F
YESTERDAY
39°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Pacific Ocean in Unalaska is 4.1°F. Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Pacific Ocean in Unalaska Over the Last 30 Days
The water temperature in Unalaska today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Unalaska will remain nearly unchanged in the coming days, its value will be 39°F.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across United States to enhance accuracy.
Water temperature data for Unalaska and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 15 | 39°F | 38°F | |
| Feb 16 | 39°F | 39°F | |
| Feb 17 | 39°F | 39°F | |
| Feb 18 | 39°F | 38°F | |
| Feb 19 | 39°F | 39°F | |
| Feb 20 | 39°F | 39°F | |
| Feb 21 | 39°F | 40°F | |
| Feb 22 | 40°F | 39°F | |
| Feb 23 | 38 | 39°F | |
| Feb 24 | 39 | 39°F | |
| Feb 25 | 39 | 39°F | |
| Feb 26 | 39 | 39°F | |
| Feb 27 | 38 | 39°F | |
| Feb 28 | 38 | 39°F | |
| Mar 1 | 39 | 39°F | |
| Mar 2 | 38 | 39°F |
Sea Temperature in Unalaska Throughout the Year
Throughout the year, the sea temperature in Unalaska never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Pacific Ocean in Unalaska.
January
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 39°F | 41°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 38°F | 41°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 38°F | 41°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 38°F | 41°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 40°F | 45°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 44°F | 48°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 47°F | 54°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 49°F | 54°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 48°F | 54°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 45°F | 48°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 43°F | 46°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 41°F | 45°F |
Monthly Water Temperature Histogram for Pacific Ocean in Unalaska
You can explore detailed data on how the water temperature in Unalaska varies each month:
What Beaches Are There In and Around Unalaska?
Agnes Beach
Agnes Beach is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Unalaska. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Arkansas Beach
Arkansas Beach is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Unalaska.
Unalaska
Unalaska is a 4-stars sandy beach, located in a 4 km (2 miles) radius of Unalaska. There is parking. There are restrooms. There are cafés. Unalaska is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Unalaska Weather
FEBRUARY 23
34°F / 36°F
overcast clouds: 85-100%humidity: 70% | wind: 2 mph
FEBRUARY 24
32°F / 36°F
overcast clouds: 85-100%humidity: 80% | wind: 1 mph
FEBRUARY 25
32°F / 36°F
scattered clouds: 25-50%humidity: 72% | wind: 1 mph
FEBRUARY 26
34°F / 34°F
light snowhumidity: 70% | wind: 2 mph
Sea Temperature in the Pacific Ocean in Unalaska: General Trends and Swimming Opportunities
The coastal region of Alaska, in the United States, typically experiences a subarctic climate with long, cold winters and short, cool summers. This area also has high levels of precipitation due to its proximity to the ocean, morphing into heavy snowfall during winter.
Unalaska is located in North America in the Northern Hemisphere at a latitude of 54 degrees, along the shores of the Pacific Ocean. Unalaska lies within the Alaska in United States.
The average annual daytime air temperature in Unalaska is 45°F (7°C), with the average nighttime temperature being 32°F (-0°C). The highest average daily temperature occurs in July, reaching 62°F (17°C), while the lowest is in January at 29°F (-2°C). As for nighttime temperatures, the minimum average temperature of 18°F (-8°C) is recorded in January, and the maximum is in July, reaching 48°F (9°C).
According to historical data, Unalaska experiences 148 rainy days per year, which accounts for 41 percent of all days in the year. On average, there are 12 rainy days each month. The wettest month is September, with 16 rainy days and 3.9 inches (98 mm) of precipitation, while the driest month is April, which typically has 9 rainy days and only 1.4 inches (36 mm) of precipitation.
The average annual water temperature in Pacific Ocean in Unalaska is 43°F (6°C). In February, the water reaches its lowest point of the year at 36°F (2°C), while in July, it peaks at 54°F (12°C). In Unalaska, the water temperature in the Pacific Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Unalaska
Nearby Cities
Frequently Asked Questions About Unalaska and its Water Temperatures
What is the current sea temperature in Unalaska?
The water temperature today in the Pacific Ocean in Unalaska is 39°F (4.1°C).
In which months is the water temperature in Unalaska comfortable for swimming?
It cannot be guaranteed that the water temperature in Unalaska will be comfortable for swimming in any month of the year.
What is the water temperature in Unalaska during the winter?
The water temperature in the Pacific Ocean in Unalaska during the winter ranges from 36°F to 45°F (2°C to 7°C).
What is the water temperature in Unalaska during the spring?
The water temperature in the Pacific Ocean in Unalaska during the spring ranges from 36°F to 45°F (2°C to 7°C).
What is the water temperature in Unalaska during the summer?
The water temperature in the Pacific Ocean in Unalaska during the summer ranges from 39°F to 54°F (4°C to 12°C).
What is the water temperature in Unalaska during the fall?
The water temperature in the Pacific Ocean in Unalaska during the fall ranges from 39°F to 54°F (4°C to 12°C).
Is it possible to swim in the sea in Unalaska at any time of the year?
In Unalaska, the Pacific Ocean is quite cold, and swimming is almost impossible as the water temperature never reaches 70°F (21°C).
What sea temperatures can I expect in Unalaska in the next month?
In March, the water temperature in the Pacific Ocean in Unalaska will range between 36°F (2°C) and 41°F (5°C)