Sedgwick — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Sedgwick (Maine, United States). 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 Sedgwick help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Sedgwick in the Atlantic Ocean today is 12°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 Sedgwick has risen over the last week and month. 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 Sedgwick will be 11.6°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 |
|---|---|---|---|
| JUN 5 | 9.6°C | 9.8°C | |
| JUN 6 | 10.2°C | 10.0°C | |
| JUN 7 | 10.3°C | 10.5°C | |
| JUN 8 | 10.6°C | 10.0°C | |
| JUN 9 | 10.7°C | 10.3°C | |
| JUN 10 | 10.1°C | 10.5°C | |
| JUN 11 | 11.2°C | 10.8°C | |
| JUN 12 | 11.9°C | 10.8°C | |
| JUN 13 | 12.2°C | 10.8°C | 12.2°C |
| JUN 14 | 10.5°C | 12.1°C | |
| JUN 15 | 10.0°C | 12.0°C | |
| JUN 16 | 10.8°C | 12.0°C | |
| JUN 17 | 10.8°C | 11.9°C | |
| JUN 18 | 10.8°C | 11.8°C | |
| JUN 19 | 11.3°C | 11.7°C | |
| JUN 20 | 11.3°C | 11.6°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
Sedgwick, on the coast of Maine, sits on the sheltered waters of Blue Hill Bay and nearby inlets, where the local sea surface temperatures follow the strong seasonal rhythms of the Gulf of Maine. During winter the water is very cold, typically about 0–4°C, and remains well below comfortable swimming levels until late spring. In spring temperatures generally rise to roughly 3–9°C as the bay responds slowly to warming air. The warmest months are July and August, when surface temperatures most often reach about 10–16°C at their peak in protected coves, while more exposed areas tend to be a few degrees cooler. By September and into early autumn the water cools again, commonly ranging from about 6–12°C as cooling winds and fall tides return the bay to near-winter conditions.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 3°C | 5°C | 7°C |
| February | 2°C | 4°C | 6°C |
| March | 1°C | 3°C | 5°C |
| April | 3°C | 5°C | 7°C |
| May | 5°C | 8°C | 10°C |
| June | 7°C | 11°C | 14°C |
| July | 11°C | 13°C | 17°C |
| August | 12°C | 15°C | 17°C |
| September | 11°C | 14°C | 16°C |
| October | 8°C | 13°C | 16°C |
| November | 7°C | 11°C | 14°C |
| December | 5°C | 7°C | 11°C |
* Click on a month to view detailed water temperature data.
Sedgwick: Weather Forecast
June 14
June 15
June 16
June 17
June 18
Location, Beaches & Local Information
Nearby Beaches & Facilities
Birchhead Shore
Causeway Beach
Reach Beach
Swimming Conditions
Swimming and beach holidays in Sedgwick are shaped by these cool waters and by the mix of rocky shorelines, small sand pockets, and calm coves. Short dips and shoreline wading are common in summer, and many visitors find that sheltered spots warm slightly earlier and feel more comfortable than open coastal stretches; however, even at summer peaks, swimmers often use wetsuits or limit time in the water because of the risk of rapid cooling and cold-water shock. Beaches and gentle coves provide scenic settings for swimming, paddling, and family beach days, while boat access opens quieter swimming spots. Visitors should plan for variable conditions, consider tidal currents and wind exposure, and be prepared with appropriate clothing and safety measures when enjoying the water.