Vacaville — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Vacaville, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Vacaville today is 30°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 |
|---|---|---|---|
| JUL 18 | 29.7°C | 23.2°C | |
| JUL 19 | 28.9°C | 23.2°C | |
| JUL 20 | 28.8°C | 23.2°C | |
| JUL 21 | 29.3°C | 23.2°C | |
| JUL 22 | 29.3°C | 23.2°C | |
| JUL 23 | 29.9°C | 23.2°C | |
| JUL 24 | 29.8°C | 23.2°C | |
| JUL 25 | 30.0°C | 23.2°C | |
| JUL 26 | 23.2°C | 29.6°C | |
| JUL 27 | 23.2°C | 29.2°C | |
| JUL 28 | 23.2°C | 28.7°C | |
| JUL 29 | 23.2°C | 28.3°C | |
| JUL 30 | 23.2°C | 27.9°C | |
| JUL 31 | 23.2°C | 27.5°C | |
| AUG 1 | 21.5°C | 27.0°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 | 3°C | 8°C | 14°C |
| February | 3°C | 9°C | 16°C |
| March | 3°C | 11°C | 19°C |
| April | 5°C | 12°C | 20°C |
| May | 8°C | 16°C | 25°C |
| June | 14°C | 20°C | 27°C |
| July | 17°C | 23°C | 30°C |
| August | 17°C | 22°C | 26°C |
| September | 11°C | 18°C | 24°C |
| October | 8°C | 15°C | 22°C |
| November | 3°C | 11°C | 19°C |
| December | 9°C | 12°C | 15°C |
Vacaville: Weather Forecast
July 26
July 27
July 28
July 29
July 30
Location & Local Information
Vacaville, California, is located in the northern part of the state and is surrounded by several smaller bodies of water, including rivers, lakes, and reservoirs, which offer a variety of recreational opportunities. The city is near the Sacramento River, but the water temperature here tends to be cooler, especially compared to nearby inland lakes and reservoirs. During the summer months, the Sacramento River's temperature typically ranges from 65°F (18°C) to 75°F (24°C), which can be refreshing for a short swim, especially when the surrounding temperatures can rise well into the 90s°F (32°C). However, the river's current can be strong in some sections, which makes it less suitable for casual swimming.
In addition to the river, Vacaville is close to other water bodies like Lake Berryessa, which provides a better environment for swimming and other water activities. During the warmer months, Lake Berryessa's water temperature can range from 70°F (21°C) to 80°F (27°C), making it much more ideal for swimming, boating, and picnicking along the shore. These temperatures are much more comfortable for longer swims, and the lake's calmer waters are more suitable for families and swimmers of all ages.
In the cooler months, the water temperature in these bodies of water, including Lake Berryessa, drops significantly. Water temperatures in the fall and winter can range from 50°F (10°C) to 60°F (15°C), which makes swimming less popular and more challenging. However, these cooler temperatures make other activities, such as fishing and hiking around the lakes, more common during the off-season. For those looking for a more controlled swimming environment year-round, Vacaville also has public pools, typically maintained between 78°F (26°C) and 82°F (28°C), offering a comfortable alternative to outdoor swimming in natural bodies of water.