annual rainfall data in sri lanka

Rainfall in Sri Lanka from May 2017: 201705 - Rainfall - Sri Lanka; 5. Average precipitation (rainfall, snow) in millimeter per month in Kurunegala (Kurunegala District), Sri Lanka displayed in a beautiful overview. ... Average Rainfall: Colombo. The results show that there are no significant negative rainfall trends in the catchment over the last 26 years. Sri Jayawardenapura Kotte has a tropical climate. See more current weather × Annual Weather Averages in Galle. Over the course of the year, the temperature typically varies from 71°F to 93°F and is rarely below 67°F or above 98°F.. Based on the beach/pool score, the best time of year to visit Ratnapura for hot-weather activities is from mid December to mid March. ecological zone of Sri Lanka which receives rainfall from NE rainfall from December to February, and the rest of the year, the district experiences dry weather condition. Sri Lanka has no marked seasons. Though Sri Lanka national rainfall index fluctuated substantially in recent years, it tended to decrease through 1969 - 2001 period ending at 1,656 mm/year in 2001. The analysis emphasises the importance of the selected catchment due to the ongoing Uma Oya development program. Find the best time to go to Colombo (Colombo District). Figure 01 - Annual rainfall pattern of Colombo district according to past studies. Katubedda, Western, Sri Lanka - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at Katubedda, Sri Lanka Sri Lanka Climate Data First of all, take a look at the page I did on Sri Lanka Malaria Correlations.. The main objective of this study was to identify the spatial distribution of annual and seasonal rainfall in Kandy District (2005-2014) and long term annual and seasonal rainfall trends in Kandy (18752014). Most parts of the country receive an average annual rainfall of more than 50 inches (1,270 millimeters). 42, No. Rainfall extreams have adverse impacts on the social and environmental of Sri Lanka. Showing: All Year Climate & Weather Averages in Galle. DATE : 1992: PAGINATION/COLLATION : 88 l. CIRCULATION LOCATION : THESISCAB: ABSTRACT : Trends and periodicities in the annual and monthly rainfall and temperature series in Sri Lanka are studied using data for 8 stations with records from 1920 to 1989 (70 years). Figure 4. The MK test showed increasing trends in annual rainfall at 24 stations (65%) with five stations showing significant increasing trend. Spatial variation of rainfall over Sri Lanka is not uniform due to topography and terrain. Focusing on one site, the probabilities for extreme rainfall … Average annual rainfall of Batticaloa district is Sri Jayawardenapura Kotte has a significant amount of rainfall during the year. L.A. Samaliarachchi and Eng. "ENGINEER", established in 1973 by The Institution of Engineers, is a Journal for dissemination of Engineering knowledge, published quarterly.Cover DescriptionCover images show Civil, Mechanical and Electrical construction works in the Broadlands hydropower project. Average precipitation (rainfall, snow) in millimeter per month in Colombo (Colombo District), Sri Lanka displayed in a beautiful overview. The monthly rainfall data have - been collected from 19 rainfall … (Weather station: Galle, Sri Lanka). The global temperature and rainfall data by station is available as NOAA MONTHLY STATION data. over Sri Lanka. Mean annual rainfall varies from 880 to 5500 mm across the island. Rainfall data for five rain gauges in one of the most important catchments in Sri Lanka were tested for the rainfall trends. HRES had large precipitation amounts locally in the region for 21 December in forecasts from 17 December and onwards. The climate in Ratnapura is hot, oppressive, and overcast. The best time to visit Sri Lanka depends on where you go. data. 1c and Table 1) and we concentrate on the ENSO-NEM rainfall relationship in this region. Rainfall in Sri Lanka consists of Monsoonal, convectional and expressional while the monsoons play a major role in the share of the annual rainfall. The Sri Lanka and peninsular India rainfall shows correlation with the simultaneous ENSO index of Niño-3 that is significant at the 99% level from 1871 to 2002 ( Table 2 ). Much of Sri Lanka receives 50% of its annual rainfall in the three months beginning October. The rainfall pattern is determined by the monsoon regime, but also by the two zenith passages of the sun (that is, when it shines directly overhead in the sky at mid-day), which occur in April and October. - "Rainfall Distributions in Sri Lanka in Time and Space: An Analysis Based on Daily Rainfall Data" 981-999. As such they are a valid prediction of what to expect for the weather in Matara in June 2020. Peninsular India and Sri Lanka receive a large fraction of their annual rainfall during the NEM (Fig. Mannar, Northern Province, Sri Lanka - Monthly weather averages including average high and low Temperature, Precipitation, Pressure, Wind Charts to assist you in planning your travel, holiday or an outdoor activity at Mannar, Sri Lanka This study combined rainfall trend analysis using Asian Precipitation—Highly Resolved Observational Data Integration towards Evaluation of Water Resources (APHRODITE) gridded rainfall data with flood maps derived from Synthetic Aperture Radar (SAR) and multispectral satellite to arrive at holistic spatio-temporal patterns of floods in Sri Lanka. (2017). This is true even for the driest month. Good and bad aspects of the forecasts for the event. Remote Sensing, 10(3):1-18. doi: 10.3390/rs10030448 Average annual rainfall in … A. Mudannayaka for providing these images. Rainfall is the conspicuous factor in the seasonal and diurnal variations of the climate of Sri Lanka. Different regions of the country have witnessed either flooding or droughts in quick succession in recent years. Annual rainfall totals at Mapalana (1950–2006). The average annual temperature is 27.0 °C | 80.6 °F in Sri Jayawardenapura Kotte. Sri Lanka is an island in the Indian Ocean (latitude 5 ∘ 55 ′ –9 ∘ 50 ′ N, longitude 79 ∘ 40 ′ –81 ∘ 53 ′ E). The monsoonal rainfall is categorized into 4 main types according to the direction of wind flow. Water International: Vol. The data used in these monthly averages covers a period of over 100 years right up until last year. Find the best time to go to Kurunegala (Kurunegala District). A decadal historical satellite data and rainfall trend analysis (2001–2016) for flood hazard mapping in Sri Lanka. DOI: 10.3390/CLI2040242 Corpus ID: 18032004. Mean annual rainfall in dry zone is less than 1,750 mm with a distinct dry season from May to September (CSS, 2015). Condition of Rain:: Showers will occur at a few places in the sea areas extending from Kankasanthurai to Hambantota via Trincomalee and Pottuvil. Data Products Insights Data Partners. Based on weather reports collected during 2005–2015. en. Average mean temperature along the coast is 26.7º C (80 F) and 19.7º C (66.50 F) in the hill country. Generally speaking, the coastal areas of Sri Lanka enjoy temperatures averaging 28°C (82°F) while the upland areas are cooler and more temperate, with a yearly average around 16-20°C (60-68°F). Rainfall Distributions in Sri Lanka in Time and Space: An Analysis Based on Daily Rainfall Data @article{Burt2014RainfallDI, title={Rainfall Distributions in Sri Lanka in Time and Space: An Analysis Based on Daily Rainfall Data}, author={T. Burt and K. Weerasinghe}, journal={Climate}, year={2014}, volume={2}, pages={242-263} } The Institution of Engineers Sri Lanka acknowledges Eng. High Temp: 91 °F. In Sri Lanka, formerly Ceylon, the climate is tropical, and the weather is hot and humid throughout the year.The country is located just north of the equator. January, the same as December, is another warm winter month in Galle, Sri Lanka, with temperature in the range of an average high of 29°C (84.2°F) and an average low of 22°C (71.6°F).The ideal sea water temperature of 27.8°C (82°F) and only 5 rainfall days, with 102mm (4") of accumulated rainfall, make January the best time for swimming and other water activities. Colombo receives rainfall from all three types of rainfall in Sri Lanka namely, Convectional, Monsoonal and Expressional. 8, pp. This location is classified as Af by Köppen and Geiger. The rainfall distribution is determined by the monsoon system of the Indian Ocean interacting with the elevated land mass in the interior of the country. Nearby three quarters of Sri Lanka lies in what is widely known as the 'Dry Zone', comprising the northern half and the whole of the east of the country. The emphasis is on daily rainfall rather than on longer-period totals, in particular the number of daily falls exceeding given threshold totals. This study investigates trends in annual and seasonal rainfall over Sri Lanka using an Innovative Trend Analysis (ITA) and Mann–Kendall (MK) test with Sen's slope estimator. Decreasing tendencies are found in the annual rainfall series of all stations. Showers or thundershowers will occur at several places in the sea areas extending from Negambo to Hambantota via Colombo, Galle and Matara in the evening or night.. Sri Lanka’s climate is tropical and consists of distinct wet and dry seasons. Loading weather data. The mean annual rainfall is less than 900mm in the South-eastern and north-western (driest) parts of the island to over 5000mm in the western slopes and the central highlands. Average Weather in Ratnapura Sri Lanka. You can pick out Sri Lanka by narrowing the domain and clicking on the location of Sri Lanka; you get something like this, which includes a list of stations. April is the hottest month in Colombo with an average temperature of 29°C (84°F) and the coldest is January at 27°C (81°F) with the most daily sunshine hours at 9 in March. Trend and variability of rainfall in two river basins in Sri Lanka: an analysis of meteorological data and farmers’ perceptions. Colombo, Sri Lanka: Annual Weather Averages. Daily rainfall totals are analyzed for the main agro-climatic zones of Sri Lanka for the period 1976–2006. A special feature is that the hot and humid lowlands and the salubrious hill country are separated by a few hours motoring. 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