How extreme does Ratnapura's weather get?

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

Based on 18 years of daily weather observations (2007–present), from the Ratnapura station. 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 Ratnapura has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

104°F Dec 1, 2011

The three most extreme on record

1 104°F Dec 1, 2011

2 103°F Aug 4, 2016

3 102°F Oct 3, 2012

❄️ Coldest night

56°F Apr 12, 2015

The three most extreme on record

1 56°F Apr 12, 2015

2 56°F May 24, 2017

3 57°F Dec 15, 2011

🌧️ Most rain in one day

15.11 in May 26, 2017

The three most extreme on record

1 15.11 in May 26, 2017

2 11.09 in Jul 7, 2020

3 10.67 in Mar 10, 2017

In plain terms

Across the record, Ratnapura has reached as high as 104°F and as low as 56°F. A single day has delivered over 15 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 12 years of daily observations at Colombo, a weather station, about 64 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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