Rio Grande — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Rio Grande (Rio Grande Do Sul, Brazil). 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 Rio Grande help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Rio Grande in the Atlantic Ocean today is 14°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 Rio Grande has fallen over the last month but risen over the last 7 days. Currently, the sea water at this location is slightly cooler than average for this day in previous years.
According to our forecast, Water temperature in Rio Grande will be 15.3°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 |
|---|---|---|---|
| SEP 10 | 14.3°C | 15.0°C | |
| SEP 11 | 13.9°C | 14.5°C | |
| SEP 12 | 13.4°C | 14.8°C | |
| SEP 13 | 13.6°C | 15.8°C | |
| SEP 14 | 13.5°C | 15.0°C | |
| SEP 15 | 13.5°C | 15.0°C | |
| SEP 16 | 13.5°C | 14.5°C | |
| SEP 17 | 13.8°C | 14.8°C | |
| SEP 18 | 14.1°C | 15.5°C | 14.1°C |
| SEP 19 | 15.3°C | 14.3°C | |
| SEP 20 | 15.3°C | 14.4°C | |
| SEP 21 | 15.5°C | 14.6°C | |
| SEP 22 | 15.5°C | 14.8°C | |
| SEP 23 | 15.8°C | 15.0°C | |
| SEP 24 | 15.8°C | 15.1°C | |
| SEP 25 | 16.5°C | 15.3°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
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 20°C | 24°C | 26°C |
| February | 22°C | 24°C | 27°C |
| March | 20°C | 24°C | 26°C |
| April | 17°C | 22°C | 25°C |
| May | 14°C | 18°C | 22°C |
| June | 12°C | 15°C | 20°C |
| July | 10°C | 13°C | 16°C |
| August | 11°C | 14°C | 18°C |
| September | 11°C | 15°C | 18°C |
| October | 14°C | 18°C | 22°C |
| November | 17°C | 19°C | 24°C |
| December | 19°C | 22°C | 24°C |
* Click on a month to view detailed water temperature data.