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Cyprus enjoys a perfect climate not only for holidays but for linvng and working. below are detailed weather and climate information from the Cyprus Meteorological service.
THE
CLIMATE
OF
CYPRUS (http://www.moa.gov.cy/moa/MS/MS.nsf/DMLcyclimate_en/DMLcyclimate_en?OpenDocument)
General
Cyprus has an intense Mediterranean
climate with the typical seasonal rhythm strongly marked in respect of
temperature, rainfall and weather generally. Hot dry summers from
mid-May to mid-September and rainy, rather changeable, winters from
November to mid-March are separated by short autumn and spring seasons
of rapid change in weather conditions.
The central Troodos massif, rising to 1951
metres and, to a less extent, the long narrow Kyrenia mountain range,
with peaks of about 1,000 metres, play an important part in the
meteorology ofCyprus . The predominantly clear skies and high sunshine
amounts give large seasonal and daily differences between temperatures
of the sea and the interior of the island which also cause considerable
local effects especially near the coasts.
At latitude 350 North, Longitude 330 East, Cyprus has a change in daylength from 9.8 hours in December to 14.5 hours in June.
In summer the island is mainly under the
influence of a shallow trough of low pressure extending from the great
continental depression centred over southwest Asia. It is a season of
high temperatures with almost cloudless skies. Rainfall is almost
negligible but isolated thunderstorms sometimes occur which give
rainfall amounting to less than 5% of the total in the average year.
In winter Cyprus is near the track of
fairly frequent small depressions which cross the Mediterranean Sea
from west to east between the continental anticyclone of Eurasia and
the generally low pressure belt of North Africa. These depressions give
periods of disturbed weather usually lasting from one to three days and
produce most of the annual precipitation, the average fall from
December to February being about 60% of the annual total.
Rainfall
The average annual total precipitation
increases up the southwestern windward slopes from 450 millimetres to
nearly 1,100 millimetres at the top of the central massif. On the
leeward slopes amounts decrease steadily northwards and eastwards to
between 300 and 350 millimetres in the central plain and the flat
southeastern parts of the island.
The narrow ridge of the Kyrenia range,
stretching 100 miles from west to east along the extreme north of the
island, produces a relatively small increase of rainfall to nearly 550
millimetres along its ridge at about 1,000 metres.
Rainfall in the warmer months contributes
little or nothing to water resources and agriculture. The small amounts
which fall are rapidly absorbed by the very dry soil and soon
evaporated in high temperatures and low humidities.
Autumn and winter rainfall, on which
agriculture and water supply generally depend, is somewhat variable.
The average rainfall for the year as a whole is about 480 millimetres
but it was as low as 182 millimetres in 1972/73 and as high as 759
millimetres in 1968/69. (The average rainfall refers to the island as a
whole and covers the period 1951-1980). Statistical analysis of
rainfall inCyprus reveals a decreasing trend of rainfall amounts in the last 30 year.
Snow occurs rarely in the lowlands and on
the Kyrenia range but falls frequently every winter on ground above
1,000 metres usually occurring by the first week in December and ending
by the middlle of April. Altough snow cover is not continuous during
the coldest months it may lie to considerable depths for several weeks
especially on the northern slopes of high Troodos.
Hail and Thunder
Hail is reported on an average two or
three times a year in the lowlands and probably three times as
frequently on the mountains, usually, between November and May, in most
districts ofCyprus . Months most liable to have hailstorms are December
to April but hail occurring rarely in early summer and autumn is more
important because of the considerable damage caused locally to fruit
crops.
Thunder is rare from June to September but
at other seasons is heard on the average on four or five days per month
from October to January and two or three days per month from February
to May.
Air Temperatures
Cyprus has a hot summer and mild winter
but this generalization must be modified by consideration of altitude,
which lowers temperatures by about 5 C per 1,000 metres and of marine
influences which give cooler summers and warmer winters near most of
the coastline and especially on the west coast.
The seasonal difference between mid-summer
and mid-winter temperatures is quite large at 18 C inland and about 14
C on the coasts.
Differences between day maximum and night
minimum temperatures are also quite large especially inland in summer.
These differences are in winter 8 to 10 C on the lowlands and 5 to 6 C
on the mountains increasing in summer to 16 C on the central plain and
9 to 12 C elsewhere.
In July and August the mean daily
temperature ranges between 29 C on the central plain and 22 C on the
Troodos mountains, while the average maximum temperature for these
months ranges between 36 C and 27 C respectively. In January the mean
daily temperature is 10 C on the central plain and 3 C on the higher
parts of Troodos mountains with an average minimum temperature of 5 C
and 0 C respectively.
Frosts are rarely severe but are frequent
in winter and spring inland and in some years handicap the economically
important production of early vegetable crops and main citrus crops.
Sea Temperatures
In the open sea temperatures rise to 27 C in August and are above
22 C during the six months June to
November. During each of the three coolest months, January to March,
average sea temperature falls only to 16 or 17 C.
Near all coasts in water three or four
metres deep temperatures are very similar to those of the open sea and
lie within the range 15 to 17 C in February and 23 to 28 C in August.
There is no significant daily change of
sea water temperature except on the coast in the very shallow waters of
less than one metre depth.
Soil Temperatures
Seasonal change in mean soil temperatures
is from about 10 C in January to 33 C in July at 10 centimetres depth
and from 14 C to 28 C at one metre. On the mountains at 1,000 metres
above sea level these mean seasonal values are lowered by about 5 C.
Even in the highest areas penetration of frost into the ground is
insufficient to cause problems.
Absorption of large amounts of solar
energy during the day and high radiation losses in clear skies at night
cause a wide daily range of soil temperatures in summer. At the soil
surface the daily variation on a typical July day in the lowlands is
between 15 C near dawn to near 60 C in middle of the afternoon. At only
5 centimetres depth the variation is reduced to between 24 and 42 C and
at 50 centimetres depth there is no daily temperature change.
Relative Humidity of the Air
Elevation above mean sea level and
distance from the coast also have considerable effects on the relative
humidity which to a large extent are a reflection of temperature
differences. Humidity may be described as average or slightly low at 65
to 95% during winter days and at night throughout the year. Near midday
in summer it is very low with values on the central plain usually a
little over 30% and occasionally as low as 15%.
Fog is infrequent and usually confined to
the early mornings but there are longer periods on the mountains in
winter when cloud often envelops the highest peaks. Visibility is
generally very good or excellent but on a few days each spring the
atmosphere is very hazy with dust brought from the Arabian and African
Deserts.
Sunshine
All parts of Cyprus enjoy a very sunny
climate compared with most countries. In the central plain and eastern
lowlands the average number of hours of bright sunshine for the whole
year is 75% of the time that the sun is above the horizon. Over the
whole summer six months there is an average of 11.5 hours of bright
sunshine per day whilst in winter this is reduced only to 5.5 hours in
the cloudiest months, December and January.
Even on the high mountains the cloudiest
winter months have an average of nearly 4 hours bright sunshine per day
and in June and July the figure reaches 11 hours.
Winds
Over the eastern Mediterranean generally
surface winds are mostly westerly or southwesterly in winter and
northwesterly or northerly in summer. Usually of light or moderate
strength, they rarely reach gale force.
Over the island of Cyprus however winds
are quite variable in direction with orography and local heating
effects playing a large part in determination of local wind direction
and strength. Differences of temperature between sea and land which are
built up daily in predominant periods of clear skies in summer cause
considerable sea and land breezes. Whilst these are most marked near
the coasts they regularly penetrate far inland in summer reaching the
capital, Nicosia, and often bringing a welcome reduction of temperature
and also an increase in humidity.
Gales are infrequent over Cyprus but may
occur especially on exposed coasts with winter depressions. Small
whirlwinds are common in summer appearing mostly near midday as "dust
devils" on the hot dry central plain. Very rarely vortices, approaching
a diameter of 100 metres or so and with the characteristics of water
spouts at sea and of small tornadoes on land, occur in a thundery type
of weather. Localized damage caused by these has been reported on a few
occasions but in generalCyprus suffers relatively little wind damage.
ΤRENDS IN PRECIPITATION AND TEMPERATURE IN CYPRUS
DURING THE 20TH CENTURY
During the 20th century remarkable variations and trends were observed in the climate of Cyprus,
particularly in the two basic climatic parameters, precipitation and
temperature. Similar climatic variations and trends were observed in
countries of the eastern Mediterranean and the Middle East, which is an
evidence of change in the general circulation of the atmosphere in the
area.
In Cyprus the precipitation presented a
decreasing trend and the temperature presented an increasing trend. The
rates of change of precipitation and temperature are greater during the
second half of the century compared to those in the first half of the
century. In the last decades the number of years of low precipitation
and drought is greater than before and the semi – arid conditions both
inCyprus and in the eastern Mediterranean were deteriorated. Also, the
most of the warm years in the century were observed in the last 20
years.
The decrease in the amount of
precipitation was remarkable. While the average annual precipitation in
the first 30-year period of the century was 559 mm, the average
precipitation in the last 30-year period was 462 mm, which corresponds
to a decrease of 17%.
On the other hand, the average annual temperature in Cyprus,
both in urban and in rural areas, presented an increasing trend. The
greater increase in temperature in the towns is due to the urbanization
effect, however, the fact that an increase is also observed in rural
areas, it is indicative of the general increase in temperature in our
area as well as globally. In Nicosia the average annual temperature
increased from 18.9°C in the first 30-year period of the century to
19.7°C in the last 30-year period, an increase of 0.8°C.
Precipitation
The rate of decrease of the average precipitation in Cyprus during the 20th century was one millimeter per year.
The decrease in precipitation occurred
mainly in the second half of the century, as a result of the higher
frequency of occurrence in the number of years of low precipitation and
drought. This is shown in Table 1, where the hydrometeorological years
as from 1901-02 are classified according to the normal precipitation of
the period 1961-1990.
T A B L E
1
AVERAGE ANNUAL PRECIPITATION IN THE AREA UNDER
GOVERNMENT CONTROL
CLASSIFICATION OF THE YEARS ACCORDING TO NORMAL (1961-1990)
|
S/N
|
Severe
Drought
|
Drought
|
Low
Precipitation
|
About
Normal
|
About
Normal
|
High
Precipitation
|
Very high
Precipitation
|
Extr. High
Precipitation
|
 |
≤ 70%
|
71-80%
|
81-90%
|
91-100%
|
101-110%
|
111-120%
|
121-130%
|
>130%
|
|
1
|
1901-02
|
1916-17
|
1915-16
|
1902-03
|
1903-04
|
1909-10
|
1913-14
|
1904-05
|
|
2
|
1931-32
|
1933-34
|
1927-28
|
1907-08
|
1905-06
|
1918-19
|
1922-23
|
1906-07
|
|
3
|
1932-33
|
1940-41
|
1956-57
|
1908-09
|
1910-11
|
1920-21
|
1928-29
|
1911-12
|
|
4
|
1963-64
|
1950-51
|
1959-60
|
1917-18
|
1912-13
|
1936-37
|
1930-31
|
1919-20
|
|
5
|
1972-73
|
1958-59
|
1971-72
|
1924-25
|
1914-15
|
1937-38
|
1938-39
|
1925-26
|
|
6
|
1990-91
|
1969-70
|
1978-79
|
1960-61
|
1921-22
|
1941-42
|
1942-43
|
1929-30
|
|
7
|
 |
1973-74
|
1981-82
|
1967-68
|
1923-24
|
1947-48
|
1944-45
|
1934-35
|
|
8
|
 |
1989-90
|
1982-83
|
1970-71
|
1926-27
|
1949-50
|
1951-52
|
1952-53
|
|
9
|
 |
1995-96
|
1983-84
|
1976-77
|
1935-36
|
1975-76
|
1961-62
|
1966-67
|
|
10
|
 |
1996-97
|
1985-86
|
1977-78
|
1939-40
|
1979-80
|
1962-63
|
1968-69
|
|
11
|
 |
1997-98
|
1993-94
|
1984-85
|
1943-44
|
1980-81
|
1974-75
|
 |
|
12
|
 |
1999-00
|
 |
1988-89
|
1945-46
|
 |
1987-88
|
 |
|
13
|
 |
 |
 |
1994-95
|
1946-47
|
 |
1991-92
|
 |
|
14
|
 |
 |
 |
1998-99
|
1948-49
|
 |
 |
 |
|
15
|
 |
 |
 |
2000-01
|
1953-54
|
 |
 |
 |
|
16
|
 |
 |
 |
 |
1954-55
|
 |
 |
 |
|
17
|
 |
 |
 |
 |
1955-56
|
 |
 |
 |
|
18
|
 |
 |
 |
 |
1957-58
|
 |
 |
 |
|
19
|
 |
 |
 |
 |
1964-65
|
 |
 |
 |
|
20
|
 |
 |
 |
 |
1965-66
|
 |
 |
 |
|
21
|
 |
 |
 |
 |
1986-87
|
 |
 |
 |
|
22
|
 |
 |
 |
 |
1992-93
|
 |
 |
 |
Similar conclusion in drawn form the
examination of the average precipitation in various 30-year periods:
1901-1930: 559 mm, 1931-1960: 524 mm, 1961-1990: 503 mm, 1971-2000: 462
mm. The average precipitation in the last 30-year period is 17% less
than in the period 1901-1930.
The average precipitation in the last decade of the century is among the lowest values for the various decades of the century.
T A B L E
2
ANNUAL PRECIPITATION IN THE LAST DECADE
|
Hydrometeorological
Year
|
Annual
Precipitation
(mm)
|
% Normal
(1961 – 1990)
(%)
|
|
1991-1992
|
637
|
127
|
|
1992-1993
|
509
|
101
|
|
1993-1994
|
417
|
83
|
|
1994-1995
|
493
|
98
|
|
1995-1996
|
383
|
76
|
|
1996-1997
|
399
|
79
|
|
1997-1998
|
388
|
77
|
|
1998-1999
|
473
|
94
|
|
1999-2000
|
363
|
72
|
|
2000-2001
|
468
|
93
|
Average for
the Decade |
453
|
90
|
Temperature
Temperature in Cyprus during the 20th century followed a reverse trend than the precipitation, with a rate of increase of 0.01°C per year.
In the period 1976-1998 the average rate
of increase in temperature was 0.035°C / year in the towns and 0.015°C
in the rural areas. The urbanization effect plays an important role in
the temperature increase in the towns, however, the increase in the
temperature in rural areas is indicative of the climate change in our
area in the last decades.
In Cyprus, as well as globally, most of
the warm years in the 20th century occurred in the last two decades.
The year 1998 was the warmest inCyprus and globally.
In Cyprus during August 1998 we experienced a very severe heat wave.
Index
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