What is the current water temperature in Cayenne?

Q: What is the current water temperature in Cayenne?

As of now, in Cayenne, the water temperature is 28.42°C. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort.

French Guiana > Cayenne

Water temperature in Cayenne

Detailed information about the current water temperature in Cayenne. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

83.2

°F

May 9, 21:13

Trend:

stable

Yesterday:

83.0°F

Tomorrow:

83.0°F

Sunrise:

06:16

Sunset:

18:36

Day Length:

12 h. 20 min.

Cayenne in May

Minimum:

79.8°F

Average:

81.0°F

Maximum:

82.5°F

Sea water temperature in Cayenne today

As of now, in Cayenne, the water temperature is 83.2°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 1.0°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 82.8°F on 2025, while the historical minimum was 80.8°F on 2018.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 83.1°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Cayenne

Date	Current Year actual* / forecast**	last year	10 years average
Apr 25	81.5°F	81.9°F	81.8°F
Apr 26	82.0°F	81.9°F	81.8°F
Apr 27	82.2°F	81.9°F	81.8°F
Apr 28	82.2°F	81.7°F	81.8°F
Apr 29	82.2°F	81.9°F	81.9°F
Apr 30	83.0°F	82.3°F	82.2°F
May 1	82.8°F	82.9°F	82.3°F
May 2	82.6°F	82.7°F	82.3°F
May 3	82.6°F	82.5°F	82.3°F
May 4	82.7°F	82.5°F	82.4°F
May 5	82.6°F	82.6°F	82.4°F
May 6	82.6°F	82.5°F	82.2°F
May 7	83.0°F	82.5°F	82.2°F
May 8	83.0°F	82.4°F	82.1°F
May 9	83.2°F	82.8°F	82.1°F
May 10	83.0°F	82.6°F	82.0°F
May 11	82.9°F	82.5°F	81.9°F
May 12	82.9°F	82.5°F	81.9°F
May 13	83.2°F	83.3°F	82.2°F
May 14	83.3°F	83.2°F	82.2°F
May 15	83.4°F	83.2°F	82.3°F
May 16	83.3°F	83.1°F	82.2°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Cayenne by month

In Cayenne, the water temperature is comfortable for swimming all year round.

The warmest water in Cayenne was recorded on October 20, 2024, reaching a 86.8°F. While the coldest temperature occurred on January 1, 2019, dipping to 78.5°F. The average readings by season are 81.1°F in Winter, 81.8°F in Spring, 83.0°F in Summer, and 83.2°F in Autumn.