Miramichi — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Miramichi (New Brunswick, 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 Miramichi help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Miramichi in the Atlantic Ocean today is 13°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
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 Miramichi today is lower than both a week ago and a month ago. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Miramichi will be 10.4°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 |
|---|---|---|---|
| OCT 4 | 15.1°C | 13.5°C | |
| OCT 5 | 14.8°C | 13.3°C | |
| OCT 6 | 14.8°C | 13.5°C | |
| OCT 7 | 14.7°C | 13.3°C | |
| OCT 8 | 14.3°C | 13.0°C | |
| OCT 9 | 13.9°C | 12.8°C | |
| OCT 10 | 13.4°C | 12.8°C | |
| OCT 11 | 13.4°C | 13.0°C | |
| OCT 12 | 12.5°C | 11.3°C | 12.5°C |
| OCT 13 | 11.3°C | 12.2°C | |
| OCT 14 | 10.5°C | 11.9°C | |
| OCT 15 | 10.8°C | 11.6°C | |
| OCT 16 | 10.5°C | 11.3°C | |
| OCT 17 | 10.3°C | 11.0°C | |
| OCT 18 | 9.8°C | 10.7°C | |
| OCT 19 | 9.8°C | 10.4°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
Miramichi, on New Brunswick’s central coast, is defined by the wide Miramichi River as it flows into Miramichi Bay and ultimately the Gulf of St. Lawrence. Water conditions vary with season and location: inland stretches of the river warm faster than the more ocean-exposed bay. Typical winter water temperatures hover around 0 to 2 °C under ice. In spring the melting and runoff keep waters cold, roughly 2 to 8 °C through April and May. Early summer brings a noticeable rise, with June commonly in the 10 to 15 °C range. Peak summer in July and August can see shore and sheltered river waters warming to about 15 to 22 °C, though more exposed bay waters are often a few degrees cooler. Temperatures decline in autumn, frequently falling to 5 to 12 °C by October and November as seasonal cooling and tides reassert themselves.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | -2°C | 0°C | 3°C |
| February | -3°C | -1°C | 1°C |
| March | -4°C | -1°C | 1°C |
| April | -2°C | 1°C | 4°C |
| May | 0°C | 5°C | 10°C |
| June | 7°C | 11°C | 16°C |
| July | 12°C | 15°C | 19°C |
| August | 12°C | 16°C | 21°C |
| September | 9°C | 14°C | 20°C |
| October | 5°C | 11°C | 16°C |
| November | 1°C | 7°C | 12°C |
| December | 0°C | 3°C | 6°C |
* Click on a month to view detailed water temperature data.
Miramichi: Weather Forecast
October 14
October 15
October 16
October 17
Location, Beaches & Local Information
Swimming Conditions
Swimming and beach holidays around Miramichi are very much a warm-season activity, with the most comfortable bathing typically between July and August when surface temperatures approach the high teens to low twenties °C in protected areas. River coves and sheltered beaches warm quicker and suit families looking for gentler water, while the bay offers a more open-water experience but can remain cooler and subject to currents and tides. Facilities and lifeguard coverage are limited compared with major resort areas, so visitors often plan shorter swims, bring wetsuits or layer clothing if they expect cooler water, and pay attention to local advisories and weather. The setting’s combination of sandy shores, riverfront parks and scenic waterways makes it appealing for day trips, paddle sports and relaxed beachtime when conditions are at their warmest.