How extreme does Mannar's weather get?

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

Based on 27 years of daily weather observations (1998–present), from the Mannar station 4 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 Mannar has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

102°F Jun 30, 2021

The three most extreme on record

1 102°F Jun 30, 2021recent

2 101°F Aug 20, 2013

3 99°F Jul 24, 2013

❄️ Coldest night

57°F Mar 13, 2014

The three most extreme on record

1 57°F Mar 13, 2014

2 58°F Jun 15, 1999

3 63°F Nov 2, 2017

🌧️ Most rain in one day

9.28 in Nov 16, 2015

The three most extreme on record

1 9.28 in Nov 16, 2015

2 7.41 in May 16, 2016

3 6.89 in Dec 3, 2020

In plain terms

Across the record, Mannar has reached as high as 102°F and as low as 57°F. A single day has delivered over 9 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 152 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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