Port Alberni — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Port Alberni (British Columbia, Canada). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Port Alberni help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Port Alberni in the Salish Sea today is 15°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
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 Over the Last 30 Days
Water temperature in Port Alberni rose over the last 30 days but fell over the last week. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Port Alberni will be 14.7°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUL 6 | 15.5°C | 15.0°C | |
| JUL 7 | 16.2°C | 14.8°C | |
| JUL 8 | 15.3°C | 14.8°C | |
| JUL 9 | 15.5°C | 15.0°C | |
| JUL 10 | 16.5°C | 15.0°C | |
| JUL 11 | 16.1°C | 14.5°C | |
| JUL 12 | 15.4°C | 15.0°C | |
| JUL 13 | 15.4°C | 14.5°C | |
| JUL 14 | 15.2°C | 14.5°C | 15.2°C |
| JUL 15 | 14.0°C | 15.1°C | |
| JUL 16 | 14.3°C | 15.1°C | |
| JUL 17 | 14.3°C | 15.0°C | |
| JUL 18 | 14.0°C | 14.9°C | |
| JUL 19 | 14.0°C | 14.9°C | |
| JUL 20 | 14.5°C | 14.8°C | |
| JUL 21 | 14.0°C | 14.7°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
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 to enhance accuracy.
Water temperature data for this location 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.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Port Alberni sits at the head of the Alberni Inlet on Vancouver Island and experiences cool coastal water conditions influenced by Pacific currents and freshwater runoff. Sea-surface temperatures in the inlet and nearby coastal waters typically range from about 6–8°C in winter, gradually rising through spring to roughly 7–12°C. Peak ocean temperatures normally occur in July and August, when sheltered areas within the inlet can reach around 11–16°C, before falling back to about 9–11°C in autumn. Freshwater bodies near Port Alberni, notably local lakes, warm more quickly in summer and commonly register higher temperatures; shallow lake water in July and August often reaches roughly 18–23°C, while spring and fall lake temperatures are usually cooler, in the low to mid-teens °C.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 6°C | 8°C | 10°C |
| February | 6°C | 8°C | 9°C |
| March | 6°C | 8°C | 10°C |
| April | 7°C | 9°C | 12°C |
| May | 7°C | 11°C | 14°C |
| June | 9°C | 13°C | 17°C |
| July | 10°C | 14°C | 17°C |
| August | 10°C | 14°C | 17°C |
| September | 8°C | 14°C | 16°C |
| October | 9°C | 12°C | 14°C |
| November | 8°C | 10°C | 12°C |
| December | 6°C | 9°C | 10°C |
* Click on a month to view detailed water temperature data.
Port Alberni: Weather Forecast
July 15
July 16
July 17
Location, Beaches & Local Information
Swimming Conditions
Swimming opportunities around Port Alberni reflect these temperature patterns and the character of the shoreline. Ocean swimming is possible during summer months but is generally brisk and many visitors use wetsuits or limit swims to the warmest mid-summer days; currents, tides and weather variations also affect comfort and safety. For a more traditional beach holiday feel, the region’s lakes offer warmer, calmer water for family swims, paddling and small beach areas, making them popular on sunny summer afternoons. Facilities and access can vary, so swimmers should check local conditions, be mindful of sudden weather changes and wear appropriate gear for water temperatures, particularly if venturing into the inlet or open coastal areas.