How extreme does Jaffna's weather get?

The hottest, coldest, wettest and snowiest days Jaffna has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 16 years of daily weather observations (2009–present), from the Jaffna station 2 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Jaffna has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

102°F Apr 2, 2010

The three most extreme on record

1 102°F Apr 2, 2010

2 102°F Jun 26, 2021

3 99°F Jul 29, 2017

❄️ Coldest night

52°F Jan 18, 2011

The three most extreme on record

1 52°F Jan 18, 2011

2 60°F Jan 13, 2011

3 61°F Feb 10, 2014

🌧️ Most rain in one day

10.43 in Nov 9, 2021

The three most extreme on record

1 10.43 in Nov 9, 2021recent

2 8.86 in Dec 3, 2020

3 7.63 in Dec 7, 2020

In plain terms

Across the record, Jaffna has reached as high as 102°F and as low as 52°F. A single day has delivered over 10 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 11 years of daily observations at China Bay, a weather station, about 180 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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