Federation for Environment, Climate and Technology

21/08/2026

We are pleased to share that we have posted a new YouTube video today, providing an update on recent and expected weather conditions in Sri Lanka.

Take a moment to watch and reflect:

Video Link : https://www.youtube.com/watch?v=nozlGeZZEpY&list=PL7wc32Pt_pL1IbCJi1_Z2W4QSe9odXAKr

If you find it meaningful, please like, share, comment, and subscribe to help spread awareness further. Every action counts!

🌦️ Sri Lanka Weather Forecast (21 - 31 Aug 2026) | Rainfall, Temper...

21/08/2026

Monitoring:
SL experienced a relatively dry period from 5-17 Aug with daily average rainfall ranging from 1-5 mm. During 12-18 Aug, the average daily rainfall across SL was 1.6 mm. The highest daily rainfall was in Mullaitivu - 27 mm on 12 Aug, Badulla - 22 mm & Pottuvil - 17 mm on 14 Aug. August has the highest winds in SL generally, marking the beginning of the kite flying season.
From 10-16 Aug 2026, winds at 1.5 km elevation were mostly from the Northwest at 8-10 m/s. Overall the temperature was typical for August across SL. The Eastern Plains had an average maximum temperature of 35.4°C. The Eastern Hills had an average minimum temperature of 18.8°C.

Predictions:
From 18-24 Aug, the US NOAA Climate Prediction Center predicts that the overall rainfall across SL shall decrease compared to the previous week. During this period; Eastern Plains are predicted to receive rainfall of 35-55 mm; Western & Eastern Hills are predicted to receive 15-35 mm; Northern, Eastern and Western Plains are predicted to receive 0-5 mm. From 19-25 Aug, wind speeds are predicted to be 4-10 m/s from the Northwest & Southwest.

El Niño Event:
El Niño conditions continue to prevail across the equatorial Pacific Ocean (Niño 3.4 region). Currently, sea surface temperature in the Niño 3.4 region is around 2.1°C above average. Meanwhile, the Indian Ocean could be gradually transitioning towards a positive IOD phase, which is typically associated with El Niño. According to CCSR/IRI Multi-Model Probability Forecast, there is a 45% likelihood of Sri Lanka receiving higher-than-normal rainfall during August-October, increasing 60% during September-November.
Read more: https://fect.lk/air-quality/

18/08/2026

From 10–13 August, air quality across most of Sri Lanka was in the ‘Moderate’ range. Thereafter, air quality improved from 14–16 August, particularly in the western and northern coastal regions. Chilaw recorded the highest daily average AQI of 77 on 12 August.

The improvement in air quality was associated with cleaner air masses flowing into Sri Lanka from the southwest, originating over the Arabian Sea and the southern Indian Ocean.

Based on the weekly average AQI values, Nuwara Eliya, Colombo, Ambalantota, Mannar, and Trincomalee recorded ‘Good’ weekly average AQI values, while the other monitored areas recorded ‘Moderate’ weekly average AQI values.

Weekly Air Quality Index (AQI) Levels:

Moderate (AQI 51-100): Akurana, Digana, Kurunegala, Mirihana, Negombo, Battaramulla, Puttalam, Chilaw, Kalawana, Jaffna, Anuradhapura
Good (AQI 0-50): Nuwara Eliya, Colombo, Ambalantota, Mannar, Trincomalee
Read more: https://fect.lk/air-quality/

14/08/2026

The latest FECT LK climate and weather update is now available on YouTube.

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Latest Update: https://www.youtube.com/watch?v=Zie0C3mHdrE
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🌦️ Sri Lanka Weather Forecast (7 - 14 Aug 2026) | Rainfall & Temper...

14/08/2026

Monitoring: Heavy rainfall over the western slopes during 1–4 August negated the dry conditions predicted for July and August by several agencies. Following these heavy rainfall events, SL experienced a relatively dry period from 5-10 Aug with daily average rainfall ranging from 1-5 mm. During 5-11 Aug, the average daily rainfall across SL was 2.4 mm. The highest daily rainfall was in Mullaitivu - 49 mm on 8 Aug, Ratnapura - 22 mm on 9 Aug and Galle - 22 mm on 7 Aug. From 3-9 Aug 2026, winds at 1.5 km elevation were mostly from the Northwest at 10-15 m/s. Overall the temperature was typical for July across SL. The Eastern Plains had an average maximum temperature of 35.0°C. The Eastern Hills had an average minimum temperature of19.1°C.

Predictions: From 4-10 Aug, the US NOAA Climate Prediction Center predicts that the overall rainfall across SL shall increase compared to the previous week. During this period; Eastern Plains are predicted to receive rainfall of 35-55 mm. From 12 18 Aug, wind speeds are predicted to be 4-10 m/s from the Northwest & West.

El Niño Event: El Niño conditions continue to prevail across the equatorial Pacific Ocean (Niño 3.4 region). Currently, sea surface temperature in the Niño 3.4 region are around 2.1°C above average. Meanwhile, the Indian Ocean could be gradually
transitioning towards a positive IOD phase, which is typically associated with El Niño. According to CCSR/IRI Multi-Model Probability Forecast, Sri Lanka is expected to receive much heavier rainfall than usual from August onwards. The likelihood increases from 45% during August-October to 60% during September-November.

12/08/2026

In general, air of moderate quality flowed into Sri Lanka mainly from the southwestern direction during the past week, contributing to predominantly ‘Moderate’ and ‘Good’ air quality conditions, with conditions being mostly ‘Moderate’ across the country. Battaramulla and Anuradhapura recorded the highest daily average AQI value of 78 on 3 August.

Considering the weekly average AQI values, Nuwara Eliya and Ambalantota recorded ‘Good’ weekly average AQI values, while the other monitored areas recorded ‘Moderate’ weekly average AQI values.

Weekly Air Quality Index (AQI) Levels:

Moderate (AQI 51-100): Akurana, Digana, Colombo, Kurunegala, Mirihana, Negombo, Battaramulla, Puttalam, Chilaw, Kalawana, Mannar, Trincomalee, Jaffna, Anuradhapura
Good (AQI 0-50): Nuwara Eliya, Ambalantota
Read more: https://fect.lk/air-quality/

07/08/2026

Our latest FECT LK climate and weather update is now available on YouTube.

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Read more: https://fect.lk/air-quality/

✨ Welcome to FECT – Empowering You with Climate & Environmental Wisdom! The Federation for Environment, Climate, and Technology (FECT) - a dedicated center of excellence - provides data-driven insights on climate, climate change, air quality, and sustainability. 📡Monitoring & Predictions: ➔...

06/08/2026

Flood Situation Update | 06 August 2026
Current Situation
Floodwaters have receded in many parts of the country, and the flood warnings previously issued for the Kelani and Kalu River Basins have been withdrawn. However, the impacts of flooding continue in parts of the Mahaweli River Basin, where inspections and recovery activities are ongoing. In addition, the spill gates of the Kotmale and Polgolla reservoirs remain open.

Situation Overview
Heavy rainfall between 01–03 August resulted in flooding across several parts of Sri Lanka, with the Mahaweli River Basin experiencing the greatest impacts. While river levels have generally receded, some flood-affected areas continue to recover.

Mahaweli River Basin
Flood-affected conditions continue in parts of Udunuwara, Udapalatha, Doluwa, Kotmale, Pasbage, Ganga Ihala Korale, Pasbage Korale, Gangawata Korale, Harispattuwa, and Pathadumbara.

Kelani & Kalu River Basins
Flood warnings for the Kelani and Kalu River Basins have been withdrawn. However, the Kalu Ganga at Ratnapura remains at Alert Level and is gradually receding.

ගංවතුර තත්ත්වය පිළිබඳ යාවත්කාලීන කිරීම | 2026 අගෝස්තු 06

වත්මන් තත්ත්වය
දිවයිනේ බොහෝ ප්‍රදේශවල ගංවතුර ජලය මේ වන විට බැස යමින් පවතින අතර, කැලණි සහ කළු ගංගා ද්‍රෝණි සඳහා නිකුත් කළ ගංවතුර අනතුරු ඇඟවීම් ඉවත් කර තිබෙනවා. කෙසේ වෙතත්, මහවැලි ගංගා ද්‍රෝණියේ ඇතැම් ප්‍රදේශවල ගංවතුරේ බලපෑම් තවදුරටත් පවතින අතර, පිරික්සුම් සහ යථා තත්ත්වයට පත් කිරීමේ කටයුතු අඛණ්ඩව සිදු කෙරෙමින් පවතිනවා. එමෙන්ම කොත්මලේ සහ පොල්ගොල්ල ජලාශවල වාන් දොරටු තවදුරටත් විවෘතව පවතිනවා.

පසුබිම
අගෝස්තු 01 සිට 03 දක්වා ඇදහැළුණු අධික වර්ෂාව හේතුවෙන් දිවයිනේ ප්‍රදේශ රැසකට ගංවතුර තත්ත්වය ඇති වූ අතර, වැඩිම බලපෑම එල්ල වූයේ මහවැලි ගංගා ද්‍රෝණියටයි.

මහවැලි ගංගා ද්‍රෝණිය
ගංවතුරේ බලපෑම් උඩුනුවර, උඩපළාත, දොළුව, කොත්මලේ, පස්බාගේ, ගඟ ඉහළ කෝරළේ, පස්බාගේ කෝරළේ, ගඟවට කෝරළේ, හාරිස්පත්තුව සහ පාතදුම්බර ප්‍රදේශවල තවදුරටත් දක්නට ලැබෙනවා.

කැලණි සහ කළු ගංගා ද්‍රෝණි
නිකුත් කළ ගංවතුර අනතුරු ඇඟවීම් මේ වන විට ඉවත් කර තිබෙනවා. කෙසේ වෙතත්, රත්නපුර ප්‍රදේශයේ කළු ගඟේ ජල මට්ටම තවමත් අවධානය යොමු කළ යුතු මට්ටමේ (Alert Level) පවතින අතර, එය ක්‍රමයෙන් පහළ යමින් පවතිනවා.

06/08/2026

Monitoring: From 1–4 August, the western slopes experienced extreme weather conditions, with several hydro catchment areas receiving over 200 mm of rainfall: Norton – 259 mm, Canyon – 235 mm, Lakshapana – 208 mm on 3 Aug; Canyon – 191 mm, Lakshapana – 187 mm, Norton – 186 mm on 2 Aug. The severe weather experienced during 1–4 August was consistent with last week's forecast, which predicted 55–85 mm of rainfall over the Western slopes. During 29 July - 4 Aug, the average daily rainfall was 5.6 mm. Among the other Met stations, the highest daily rainfall was in Nuwara Eliya - 94 mm on 2 Aug & 72 mm on 5 Aug, Batticaloa - 73 mm on 5 Aug. From 27 July - 2 Aug 2026, winds at 1.5 km elevation were mostly from the West at 10-20 m/s. Overall the temperature was typical for July across SL. The Eastern Plains had an average maximum temperature of 35.4°C. The Eastern Hills had an average minimum temperature of 20.2°C.

Predictions: From 4-10 Aug, the US NOAA Climate Prediction Center predicts that the overall rainfall across SL shall increase compared to the previous week. During this period; Western Hills, Western & Southern Plains are predicted to receive rainfall of 35-55 mm. From 5-11 Aug, wind speeds are predicted to be 5-15 m/s from the Northwest & West.

El Niño Event: El Niño conditions continue to prevail across the equatorial Pacific Ocean (Niño 3.4 region). Currently, sea surface temperature in the Niño 3.4 region is around 2.1°C above average. According to the CCSR/IRI Multi-Model Probability Forecast, Sri Lanka is expected to receive much heavier rainfall than usual from August onwards. The likelihood increases from 45% during August-October to 70% during September-November. This unusually wet weather is caused by the El Niño influence.
Read more: https://fect.lk/air-quality/

04/08/2026

ශ්‍රී ලංකාවේ පවතින අයහපත් කාලගුණ තත්ත්වය පිළිබඳ තොරතුරු

ශ්‍රී ලංකාවේ ප්‍රදේශ කිහිපයක දැනට අයහපත් කාලගුණ තත්ත්වයක් පවතී. පසුගිය පැය 24 තුළ මහනුවර, නුවරඑළිය, කෑගල්ල, රත්නපුර, ගාල්ල සහ මාතර දිස්ත්‍රික්කවල බොහෝ ප්‍රදේශවලට 40mm කට වැඩි වර්ෂාපතනයක් ලැබී ඇත. වැඩිම වර්ෂාපතනය රත්නපුරයෙන් (45mm) වාර්තා වූ අතර, ඊළඟට කටුගස්තොටින් (44mm) වාර්තා විය. විදුලි බලාගාර ආශ්‍රිත ප්‍රදේශ අතරින් වැඩිම වර්ෂාපතනය නෝර්ටන් (259mm) ප්‍රදේශයෙන් වාර්තා විය.

මෙම තත්ත්වය හේතුවෙන් ගෙලිඔය, ගම්පොළ ඇතුළු ප්‍රදේශ කිහිපයක ගංවතුර තත්ත්වයන් මෙන්ම ස්ථාන කිහිපයක නායයෑම් සහ මාර්ග අවහිර වීම් ද වාර්තා වී ඇත.

වර්ෂාපතන පුරෝකථනය
𝐀𝐮𝐠𝐮𝐬𝐭 𝟓: කාලගුණ විද්‍යා දෙපාර්තමේන්තුවට අනුව, පෙර දිනට සාපේක්ෂව වර්ෂාපතනය අඩුවනු ඇතැයි අපේක්ෂා කෙරේ. මහනුවර, නුවරඑළිය සහ කුරුණෑගල දිස්ත්‍රික්කවල 10-15mm වර්ෂාපතනයක් ද, කෑගල්ල, රත්නපුර සහ මාතලේ දිස්ත්‍රික්කවල 5-10mm වර්ෂාපතනයක් ද අපේක්ෂා කෙරේ. කෙසේ වෙතත්, August 6 - 10 දක්වා කාලය තුළ වර්ෂාපතනය නැවතත් වැඩිවනු ඇතැයි පුරෝකථනය කර ඇත.
𝐀𝐮𝐠𝐮𝐬𝐭 𝟔: කෑගල්ල, නුවරඑළිය සහ රත්නපුර දිස්ත්‍රික්කවලට 30-80mm වර්ෂාපතනයක් ද, කළුතර, ගාල්ල, මාතර සහ මහනුවර දිස්ත්‍රික්කවලට 15-30mm වර්ෂාපතනයක් ද ලැබෙනු ඇතැයි අපේක්ෂා කෙරේ.
𝐀𝐮𝐠𝐮𝐬𝐭 𝟕: කෑගල්ල, නුවරඑළිය සහ රත්නපුර දිස්ත්‍රික්කවලට 50-80mm වර්ෂාපතනයක් ද; කොළඹ, කළුතර සහ ගාල්ල දිස්ත්‍රික්කවලට 30-50mm වර්ෂාපතනයක් ද; ගම්පහ සහ මහනුවර දිස්ත්‍රික්කවලට 15-30mm වර්ෂාපතනයක් ද ලැබෙනු ඇතැයි අපේක්ෂා කෙරේ.
𝐀𝐮𝐠𝐮𝐬𝐭 𝟖: කෑගල්ල, නුවරඑළිය සහ රත්නපුර දිස්ත්‍රික්කවලට 30-50mm වර්ෂාපතනයක් ද; කළුතර දිස්ත්‍රික්කයට 15-30mm වර්ෂාපතනයක් ද ලැබෙනු ඇතැයි අපේක්ෂා කෙරේ.
𝐀𝐮𝐠𝐮𝐬𝐭 𝟗: කෑගල්ල, නුවරඑළිය සහ රත්නපුර දිස්ත්‍රික්කවලට 50-80mm වර්ෂාපතනයක් ලැබෙනු ඇතැයි අපේක්ෂා කෙරේ. කොළඹ, ගම්පහ සහ ගාල්ල දිස්ත්‍රික්කවලට 30-50 mm අතර වර්ෂාපතනයක් ලැබෙනු ඇතැයි අපේක්ෂා කෙරෙන අතර, මාතර සහ මහනුවර දිස්ත්‍රික්කවලට 15-30 mm අතර වර්ෂාපතනයක් ලැබෙනු ඇතැයි අපේක්ෂා කෙරේ.

සුළං තත්ත්වය - වයඹ, උතුරු මැද, සබරගමුව, මධ්‍යම සහ දකුණු පළාත්වල පැයට කිලෝමීටර් 40-50ත් අතර වේගයකින් යුත් ප්‍රබල සුළං ඇතිවිය හැකි බවට අපේක්ෂා කෙරේ.

නායයෑම් සහ ගංවතුර පිළිබඳ අනතුරු ඇඟවීම් - ජාතික ගොඩනැගිලි පර්යේෂණ සංවිධානය (NBRO) විසින් මහනුවර, කෑගල්ල සහ නුවරඑළිය දිස්ත්‍රික්ක සඳහා 3 වන මට්ටමේ (රතු - ඉවත් කිරීමේ) නායයෑම් අනතුරු ඇඟවීම් නිකුත් කර ඇත.