Bolton — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Bolton, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Bolton today is 18.8°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 24 | 16.5°C | 20.3°C | |
| JUN 25 | 17.1°C | 20.3°C | |
| JUN 26 | 17.1°C | 20.3°C | |
| JUN 27 | 18.9°C | 20.3°C | |
| JUN 28 | 18.9°C | 20.3°C | |
| JUN 29 | 18.4°C | 20.3°C | |
| JUN 30 | 18.6°C | 20.3°C | |
| JUL 1 | 18.8°C | 22.0°C | |
| JUL 2 | 22.0°C | 19.0°C | |
| JUL 3 | 22.0°C | 19.1°C | |
| JUL 4 | 22.0°C | 19.3°C | |
| JUL 5 | 22.0°C | 19.4°C | |
| JUL 6 | 22.0°C | 19.6°C | |
| JUL 7 | 22.0°C | 19.8°C | |
| JUL 8 | 22.0°C | 19.9°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.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 2°C | 6°C | 9°C |
| February | 2°C | 6°C | 9°C |
| March | 3°C | 7°C | 10°C |
| April | 7°C | 11°C | 14°C |
| May | 11°C | 16°C | 21°C |
| June | 14°C | 20°C | 26°C |
| July | 17°C | 22°C | 27°C |
| August | 16°C | 21°C | 26°C |
| September | 13°C | 18°C | 23°C |
| October | 10°C | 14°C | 17°C |
| November | 5°C | 9°C | 12°C |
| December | 2°C | 6°C | 9°C |
Bolton: Weather Forecast
July 2
July 3
July 4
July 5
July 6
Location & Local Information
Bolton, located in Greater Manchester in the northwest of England, is surrounded by hills, rivers, and reservoirs that reflect the region’s cool, temperate climate. The water in these bodies remains fresh and often chilly throughout the year due to frequent rainfall and limited sunshine. In winter, typical water temperatures range between 3–5 °C (37–41 °F), rising in spring to about 8–10 °C (46–50 °F). During the summer, reservoirs such as Jumbles or High Rid can reach around 15–17 °C (59–63 °F) on warmer days, though shaded or deeper parts remain noticeably cooler. By autumn, the water temperature usually drops again toward 9–11 °C (48–52 °F), maintaining the steady seasonal pattern typical of northwest England’s upland lakes.
Swimming in Bolton’s reservoirs or rivers is possible but not officially encouraged, as many are managed for water supply and can be deep and cold. However, experienced wild swimmers sometimes use safe access points during the summer when conditions are calm. Wetsuits are recommended for comfort in the cool water. The area is also popular for walking, kayaking, and fishing. Nearby attractions include Jumbles Country Park, Rivington Pike, and the West Pennine Moors, offering scenic landscapes and plenty of outdoor recreation close to the town.