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Ketchikan
Water Temperature in the Pacific Ocean in Ketchikan, Alaska: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Ketchikan 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 Ketchikan
46°F
TODAY
46°F
YESTERDAY
45°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Pacific Ocean in Ketchikan is 7.5°F. This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.
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 Ketchikan Over the Last 30 Days
The water temperature in Ketchikan 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 Ketchikan will remain nearly unchanged in the coming days, its value will be 48°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 Ketchikan 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 |
|---|---|---|---|
| May 11 | 45°F | 46°F | |
| May 12 | 45°F | 46°F | |
| May 13 | 45°F | 46°F | |
| May 14 | 45°F | 47°F | |
| May 15 | 46°F | 47°F | |
| May 16 | 46°F | 48°F | |
| May 17 | 46°F | 48°F | |
| May 18 | 47°F | 48°F | |
| May 19 | 48°F | 46°F | |
| May 20 | 49°F | 47°F | |
| May 21 | 50°F | 47°F | |
| May 22 | 50°F | 47°F | |
| May 23 | 50°F | 47°F | |
| May 24 | 50°F | 48°F | |
| May 25 | 50°F | 48°F | |
| May 26 | 50°F | 48°F |
Sea Temperature in Ketchikan Throughout the Year
Throughout the year, the sea temperature in Ketchikan never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Pacific Ocean in Ketchikan.
January
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 43°F | 46°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 43°F | 46°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 41°F | 45°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 44°F | 48°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 48°F | 54°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 54°F | 61°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 61°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 56°F | 61°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 54°F | 57°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 50°F | 54°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 47°F | 52°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 45°F | 50°F |
Monthly Water Temperature Histogram for Pacific Ocean in Ketchikan
You can explore detailed data on how the water temperature in Ketchikan varies each month:
What Beaches Are There In and Around Ketchikan?
Rotary Beach Park
Rotary Beach Park is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Ketchikan. For those who prefer clothing-optional beaches, Rotary Beach Park is a designated nudist beach. There is parking. There are restrooms.
Rotary Beach Park
Rotary Beach Park is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Ketchikan. There is parking.
Ketchikan Weather
MAY 19
48°F / 52°F
light rainhumidity: 84% | wind: 2 mph
MAY 20
46°F / 50°F
light rainhumidity: 87% | wind: 2 mph
MAY 21
46°F / 52°F
light rainhumidity: 78% | wind: 1 mph
MAY 22
46°F / 52°F
light rainhumidity: 72% | wind: 1 mph
Sea Temperature in the Pacific Ocean in Ketchikan: 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.
Ketchikan is located in North America in the Northern Hemisphere at a latitude of 55 degrees, along the shores of the Pacific Ocean. Ketchikan lies within the Alaska in United States.
The average annual daytime air temperature in Ketchikan is 45°F (7°C), with the average nighttime temperature being 34°F (1°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 23°F (-5°C) is recorded in January, and the maximum is in August, reaching 48°F (9°C).
According to historical data, Ketchikan 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 10.1 inches (256 mm) of precipitation, while the driest month is April, which typically has 9 rainy days and only 3.7 inches (95 mm) of precipitation.
The average annual water temperature in Pacific Ocean in Ketchikan is 48°F (9°C). In March, the water reaches its lowest point of the year at 37°F (3°C), while in June, it peaks at 61°F (16°C). In Ketchikan, the water temperature in the Pacific Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Ketchikan
Nearby Cities
Frequently Asked Questions About Ketchikan and its Water Temperatures
What is the current sea temperature in Ketchikan?
The water temperature today in the Pacific Ocean in Ketchikan is 46°F (7.8°C).
In which months is the water temperature in Ketchikan comfortable for swimming?
It cannot be guaranteed that the water temperature in Ketchikan will be comfortable for swimming in any month of the year.
What is the water temperature in Ketchikan during the winter?
The water temperature in the Pacific Ocean in Ketchikan during the winter ranges from 39°F to 50°F (4°C to 10°C).
What is the water temperature in Ketchikan during the spring?
The water temperature in the Pacific Ocean in Ketchikan during the spring ranges from 37°F to 54°F (3°C to 12°C).
What is the water temperature in Ketchikan during the summer?
The water temperature in the Pacific Ocean in Ketchikan during the summer ranges from 46°F to 61°F (8°C to 16°C).
What is the water temperature in Ketchikan during the fall?
The water temperature in the Pacific Ocean in Ketchikan during the fall ranges from 43°F to 57°F (6°C to 14°C).
Is it possible to swim in the sea in Ketchikan at any time of the year?
In Ketchikan, 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 Ketchikan in the next month?
In June, the water temperature in the Pacific Ocean in Ketchikan will range between 46°F (8°C) and 61°F (16°C)