Federation for Environment, Climate and Technology

19/06/2026

Predictions: From 16-22 June, the US NOAA Climate Prediction Center predicts that the rainfall shall decrease across SL. During this period, Western Hills are predicted to receive rainfall of 55-85 mm. From 17 -23 June, wind speeds are predicted to be 50-10 m/s from the Southwest and West.

El Niño Event: As of mid-June, NOAA CPC has declared that the Pacific Ocean has transitioned into El Niño conditions. El Niño is a natural climate pattern that occurs when ocean waters in the central and eastern Pacific become warmer than usual, affecting weather around the world. Currently, sea surface temperatures across equatorial Pacific (Niño 3.4 region) are around 1.1°C above average. However, the Indian Ocean is currently behaving differently from what is typically expected during an El Niño event, with warmer-than-normal sea surface temperatures, active rainfall, and wind patterns.

Monitoring: Compared to May which experienced double the amount of rainfall than expected, relatively dry conditions were observed across SL during 1-12 June. During 10-16 June, the average daily rainfall was 4 mm. The highest daily rainfall was in Colombo - 59 mm, Ratmalana - 48 mm on 11 June. From 8-14 June 2026, winds at 1.5 km elevation were mostly from the West at 10 - 15 m/s. Overall the temperature was typical for June across SL. The Eastern Plains had an average maximum temperature of 35.2°C. The Eastern Hills had an average minimum temperature of 19.4°C

Read More : https://bit.ly/WMS_Report_20_26_June_2026

15/06/2026

In general, cleaner air flowed into Sri Lanka from the southwestern direction during the past week, contributing to favorable air quality conditions across the country. Only 'Good' and 'Moderate' daily average AQI values were recorded throughout the country. The highest daily average AQI value recorded during the week was 73 in Akurana, which falls under the 'Moderate' category.

Considering the weekly average AQI values, Akurana, Mirihana, Battaramulla, Chilaw, Kalawana, and Jaffna recorded 'Moderate' AQI levels, while all other monitored areas recorded 'Good' AQI levels.

𝐖𝐞𝐞𝐤𝐥𝐲 𝐀𝐢𝐫 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐈𝐧𝐝𝐞𝐱 (𝐀𝐐𝐈) 𝐋𝐞𝐯𝐞𝐥𝐬:

𝐌𝐨𝐝𝐞𝐫𝐚𝐭𝐞 (AQI 51-100): Akurana, Mirihana, Battaramulla, Chilaw, Kalawana, Jaffna
𝐆𝐨𝐨𝐝(AQI 0 - 50): Digana, Nuwara Eliya, Colombo, Kurunegala, Negombo, Ambalantota, Mannar, Trincomalee, Anuradhapura

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

11/06/2026

Predictions: From 9-11 June, the US NOAA Climate Prediction Center predicts that the rainfall shall decrease across SL. During this period, Southern Plains, Western Plains & Hills are predicted to receive rainfall of 45-85 mm. From 10 -16 June, wind speeds are predicted to be 10-20 m/s from the Southwest and Northwest.

El Niño Event: As of mid-May, the equatorial Pacific is rapidly transitioning into El Niño conditions. El Niño is a natural climate pattern that occurs when ocean waters in the central and eastern Pacific become warmer than usual, affecting weather around the world. Currently, sea surface temperatures across equatorial Pacific are around 0.5–2.0°C above average, indicating a strengthening shift toward El Niño conditions. However, the Indian Ocean is currently behaving differently from what is typically expected during an El Niño event, with warmer-than-normal sea surface temperatures,

active rainfall, and wind patterns.

Monitoring: Compared to the month of May which experienced double the amount of rainfall than expected, relatively dry conditions were observed across SL during 1-12 June. During This period, the average daily rainfall was 4 mm. The highest daily rainfall was in Kurunegala - 42 mm on 6 June and Ratnapura - 35 mm on 5 June. From 1 – 7 June 2026, winds at 1.5 km elevation were mostly from the West at 10 - 15 m/s. Overall the temperature was typical for June across SL. The Eastern Plains had an average maximum temperature of 35.4°C. The Eastern Hills had an average minimum temperature of 20.5°C.

09/06/2026

In general, cleaner air flowed into Sri Lanka from the southwestern direction during the past week, contributing to favorable air quality conditions across the country. The majority of the days recorded 'Good' daily average AQI values. The highest daily average AQI value recorded during the week was 60 in Battaramulla, which falls under the 'Moderate' category.

Considering the weekly average AQI values, all monitored locations recorded 'Good' air quality levels throughout the week.

Weekly Air Quality Index (AQI) Levels:

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

05/06/2026

Predictions: From 2-8 June, the US NOAA Climate Prediction Center predicts that the rainfall shall decrease across SL. During this period, Southern Plains, Western Plains & Hills are predicted to receive rainfall of 65-95 mm. From 3 -9 June, wind speeds are predicted to be 10-20 m/s from the Southwest and West.

El Niño Event: As of mid-May, the equatorial Pacific is rapidly transitioning into El Niño conditions. El Niño is a natural climate pattern that occurs when ocean waters in the central and eastern Pacific become warmer than usual, affecting weather around the world. Currently, sea surface temperatures across equatorial Pacific are around 0.5–2.0°C above average, indicating a strengthening shift toward El Niño conditions. However, the Indian Ocean is currently behaving
differently from what is typically expected during an El Niño event, with warmer-than-normal sea surface temperatures, active rainfall, and wind patterns.

Monitoring: During the month of May, SL received nearly double the expected rainfall. However, relatively dry conditions were observed across the country during 27 May - 2 June. During This period, the average daily rainfall was 2 mm. The highest daily rainfall was in Bandarawela - 47 mm and Galle - 24 mm on 28 May. From 25 – 31 May 2026, winds at 1.5 km elevation were mostly from the West at 10 - 15 m/s. Overall the temperature was typical for May across SL. The Northern Plains had an average maximum temperature of 33.2°C. The Western Hills had an average minimum temperature of 18.6°C.

04/06/2026

🌍🌱 World Environment Day 2026

A healthy environment is the foundation of a sustainable future.

This World Environment Day, let's celebrate our planet and strengthen our commitment to protecting it through awareness, knowledge, and action.

For a quarter century, FECT and its partners have undertaken climate and environment-related research across the Indian Ocean region, including Sri Lanka and the Maldives, exploring and demonstrating pathways toward environmental sustainability and climate resilience.

📊 Follow our pages for weekly updates on:
🌦️ Monitored and Predicted Weather & Climate Conditions in Sri Lanka
🌫️ Air Quality Assessments for Urban Regions
📈 Climate and Environmental Insights

Stay informed with reliable environmental information and the latest updates from Sri Lanka.

Together, let's create a greener and more sustainable future. 🌱

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03/06/2026

fect.lk In general, cleaner air flowed into Sri Lanka from
the southwestern direction during the past week,
contributing to generally favorable air quality
conditions. However, on 27 May, Trincomalee recorded
a daily average AQI value of 163, which falls within the
“Unhealthy” category. On 25 and 26 May, Trincomalee
recorded daily average AQI values of 114 and 125,
respectively, which fall within the “Unhealthy for
Sensitive Groups” category.

This increase in AQI levels at Trincomalee may have
been influenced by localized sources, such as open
burning, construction activities, or other local
emissions, as cleaner air was generally being
transported into Sri Lanka by prevailing southwesterly
winds.

The remaining days of the week recorded “Moderate”
and “Good” daily average AQI values. Trincomalee
recorded the highest daily average AQI value during
the week.

Considering the weekly average AQI values, Akurana,
Digana, Nuwara Eliya, Chilaw, Kalawana, Trincomalee,
and Anuradhapura recorded “Moderate” air quality,
while all other monitored locations recorded “Good”
weekly average AQI values.

Weekly Air Quality Index (AQI) Levels:

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

29/05/2026

https://youtu.be/NB88UtimWlA?si=mGmLHKtkXwRJbU7d

Sri Lanka Weather Forecast | ශ්‍රී ලංකාවේ කාලගුණ අනාවැකි | 29 May -...

29/05/2026

Predictions: From 27 May – 2 June, the US NOAA Climate Prediction Center predicts that the rainfall shall decrease across SL. During this period, Western Plains & Hills are predicted to receive rainfall of 85-115 mm. From 28 May - 3 June, wind speeds are predicted to be 8-15 m/s from the Northwest and West.

Monitoring: During the month of May, SL received nearly double the expected rainfall. However, relatively dry conditions were observed across the country during 21-26 May. During 21 - 26 May, the average daily rainfall was 5 mm. The highest daily rainfall was in Ratnapura - 197 mm, Katunayaka - 176 mm, Colombo - 100 mm on 21 May. From 19 – 25 May 2026, winds at 1.5 km elevation were mostly from the Northwest at 10 - 15 m/s. Overall the temperature was typical for May across SL. The Eastern Plains had an average maximum temperature of 34.8°C. The Eastern Hills had an average minimum temperature of 19.6°C.

25/05/2026

#කාලගුණඅනාවැකි

Sri Lanka Weather Forecast | ශ්‍රී ලංකාවේ කාලගුණ අනාවැකි | 23 May -...