Jaffna
Sri Lanka
Jaffna has warmed by about +0.8 °C since 1981.Its rainy-season rain shows no clear change.It lies in the Bay of Bengal cyclone region.
Temperature
Whole year
Getting warmer
+0.17 °C
every 10 years
Very sure this is a real change
Hot season (March–May): +0.11 °C every 10 years.
Each year Long-term trend Likely range of the trend (95%)
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- Rate (Sen's slope)
- +0.175 °C/decade
- 95% range
- +0.142 to +0.210
- p-value (modified Mann–Kendall)
- p < 0.001
- Passes the map-wide check (FDR)
- Yes
- Map square used
- 9.00°N, 81.00°E (131 km from the city)
- Data
- NASA GISTEMP v4 (GISS), 2° grid
Rain
Rainy season (June–September)
No clear change
−20 mm
every 10 years (−7.8% of the usual amount)
Not sure: could be natural ups and downs
Whole year: +61 mm every 10 years.
Each year Long-term trend Likely range of the trend (95%)
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- Rate (Sen's slope)
- −19.8 mm/decade
- 95% range
- −42.2 to +1.9
- p-value (modified Mann–Kendall)
- p = 0.06
- Passes the map-wide check (FDR)
- No
- Map square used
- 8.75°N, 81.25°E (170 km from the city)
- Data
- GPCP v2.3 monthly precipitation (NASA GSFC / NOAA), 2.5° grid
Disasters around Jaffna
Floods
8
flood alerts within 150 km since 2000, 2 of them serious or severe.
Most recent: December 2024.
Landslides
0
reported landslides within 100 km (2007–2017).
Fires
1
fires a year seen by satellite nearby in March–May (2003–2024 average).