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Weather extremes

How extreme does Port Erin's weather get?

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

Based on 50+ years of daily weather observations (1971–present), from the Ronaldsway station 8 km away. Updated through April 2026 — 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 Port Erin has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
84°F Jul 11, 1983

That is about 19°F hotter than a normal July afternoon in Port Erin (typical high near 65°F).

The three most extreme on record

1 84°F Jul 11, 1983
2 83°F Jun 12, 2023
3 82°F Jul 31, 1995
❄️ Coldest night
18°F Jan 12, 1982

About 21°F colder than a normal January night in Port Erin (typical low near 39°F).

The three most extreme on record

1 18°F Jan 12, 1982
2 19°F Jan 1, 1979
3 19°F Jan 11, 1982
🌧️ Most rain in one day
3.05 in Oct 3, 2014

About 76% of a typical October's rain in a single day (Port Erin averages roughly 4.0 in across the month).

The three most extreme on record

1 3.05 in Oct 3, 2014
2 2.65 in Oct 1, 1981
3 2.42 in Oct 21, 2002

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-10°10°30°50°70°90°110° all-time high 84°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Port Erin's record heat sits well above even a hot day for the season — July's 84°F is about 19°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Port Erin's warmest days reach the mid-60s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 84°F and as low as 18°F. A single day has delivered over 3 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 & precipitation — 1991–2020 normals computed from 30 years of daily observations at Ronaldsway, a weather station, about 8 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →