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Derna
Water Temperature in the Mediterranean Sea in Derna, Libya: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Derna in Libya, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Derna
18.6°C
TODAY
18.8°C
YESTERDAY
17.5°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Mediterranean Sea in Derna is 18.6°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 for Mediterranean Sea in Derna Over the Last 30 Days
The water temperature in Derna today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Derna will remain nearly unchanged in the coming days, its value will be 19.6°C.
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 across Libya to enhance accuracy.
Water temperature data for Derna and nearby towns and resorts 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.
Table of Daily Sea Temperature Data
Date | Current | Average | Forecast |
---|---|---|---|
May 9 | 17.5°C | 18.0°C | |
May 10 | 18.1°C | 18.0°C | |
May 11 | 18.1°C | 18.0°C | |
May 12 | 18.0°C | 18.3°C | |
May 13 | 17.7°C | 18.5°C | |
May 14 | 18.8°C | 19.0°C | |
May 15 | 18.8°C | 18.8°C | |
May 16 | 17.9°C | 18.8°C | |
May 17 | 19.5°C | 18.7°C | |
May 18 | 20.3°C | 18.9°C | |
May 19 | 20.3°C | 19.0°C | |
May 20 | 20.5°C | 19.2°C | |
May 21 | 20.5°C | 19.3°C | |
May 22 | 20.5°C | 19.4°C | |
May 23 | 20.3°C | 19.5°C | |
May 24 | 20.3°C | 19.6°C |
Sea Temperature in Derna Throughout the Year
Throughout the year, the sea temperature in Derna exceeds 77°F (25°C) for 84 days, exceeds 72°F (22°C) for 164 days, and exceeds 64°F (18°C) for 239 days.
Below is the annual chart of sea temperature changes in the Mediterranean Sea in Derna.

January
Minimum | Average | Maximum |
---|---|---|
14°C | 17.5°C | 21°C |
February
Minimum | Average | Maximum |
---|---|---|
13°C | 16°C | 19°C |
March
Minimum | Average | Maximum |
---|---|---|
13°C | 15.5°C | 18°C |
April
Minimum | Average | Maximum |
---|---|---|
14°C | 16.5°C | 19°C |
May
Minimum | Average | Maximum |
---|---|---|
16°C | 19°C | 22°C |
June
Minimum | Average | Maximum |
---|---|---|
18°C | 22°C | 26°C |
July
Minimum | Average | Maximum |
---|---|---|
22°C | 25°C | 28°C |
August
Minimum | Average | Maximum |
---|---|---|
24°C | 26.5°C | 29°C |
September
Minimum | Average | Maximum |
---|---|---|
23°C | 26°C | 29°C |
October
Minimum | Average | Maximum |
---|---|---|
21°C | 24°C | 27°C |
November
Minimum | Average | Maximum |
---|---|---|
16°C | 20.5°C | 25°C |
December
Minimum | Average | Maximum |
---|---|---|
13°C | 18°C | 23°C |
Monthly Water Temperature Histogram for Mediterranean Sea in Derna
You can explore detailed data on how the water temperature in Derna varies each month:
Derna Weather
MAY 17
18°C / 22°C
overcast clouds: 85-100%humidity: 71% | wind: 6 km/h
MAY 18
18°C / 22°C
overcast clouds: 85-100%humidity: 69% | wind: 6 km/h
MAY 19
19°C / 23°C
scattered clouds: 25-50%humidity: 60% | wind: 5 km/h
MAY 20
19°C / 20°C
clear skyhumidity: 77% | wind: 5 km/h



Sea Temperature in the Mediterranean Sea in Derna: General Trends and Swimming Opportunities
Libya's coastal regions feature a Mediterranean climate, characterized by hot, dry summers and mild, wet winters. These areas experience mild temperatures ranging from 10°C (50°F) in winter to around 30°C (86°F) in summer.
Derna is located in Africa in the Northern Hemisphere at a latitude of 33 degrees, along the shores of the Mediterranean Sea. Derna lies within in Libya.
The average annual daytime air temperature in Derna is 22°C (72°F), with the average nighttime temperature being 15°C (59°F). The highest average daily temperature occurs in July, reaching 29°C (85°F), while the lowest is in February at 14°C (58°F). As for nighttime temperatures, the minimum average temperature of 9°C (47°F) is recorded in February, and the maximum is in July, reaching 23°C (74°F).
According to historical data, Derna experiences 59 rainy days per year, which accounts for 16 percent of all days in the year. On average, there are 5 rainy days each month. The wettest month is January, with 11 rainy days and 117 mm (4.6 inches) of precipitation, while the driest month is July, which typically has 0 rainy days and only 1 mm (0.0 inches) of precipitation.
The average annual water temperature in Mediterranean Sea in Derna is 21°C (70°F). In February, the water reaches its lowest point of the year at 13°C (55°F), while in August, it peaks at 29°C (84°F). The months suitable for comfortable beach vacations and swimming in the Mediterranean Sea are July, August, September, and October. During this period, the water temperature stays above 20°C (68°F) and can reach up to 29°C (84°F) on some days.
Geographical Location of Derna
Frequently Asked Questions About Derna and its Water Temperatures
What is the current sea temperature in Derna?
The water temperature today in the Mediterranean Sea in Derna is 66°F (18.6°C).
In which months is the water temperature in Derna comfortable for swimming?
The water temperature in the Mediterranean Sea in Derna is comfortable for swimming and beach vacations in July, August, September, and October.
What is the water temperature in Derna during the winter?
The water temperature in the Mediterranean Sea in Derna during the winter ranges from 13°C to 23°C (55°F to 73°F).
What is the water temperature in Derna during the spring?
The water temperature in the Mediterranean Sea in Derna during the spring ranges from 13°C to 22°C (55°F to 72°F).
What is the water temperature in Derna during the summer?
The water temperature in the Mediterranean Sea in Derna during the summer ranges from 18°C to 29°C (64°F to 84°F).
What is the water temperature in Derna during the fall?
The water temperature in the Mediterranean Sea in Derna during the fall ranges from 16°C to 29°C (61°F to 84°F).
Is it possible to swim in the sea in Derna year-round?
No, it is not possible to swim in the Mediterranean Sea in Derna year-round, the months suitable for comfortable swimming are July, August, September, and October.
What sea temperatures can I expect in Derna in the next month?
In June, the water temperature in the Mediterranean Sea in Derna will range between 64°F (18°C) and 79°F (26°C)