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Weather extremes

How extreme does Phra Nakhon Si Ayutthaya's weather get?

The hottest, coldest, wettest and snowiest days Phra Nakhon Si Ayutthaya 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 Suphan Buri station 50 km away. Updated through June 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 Phra Nakhon Si Ayutthaya has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F Apr 10, 2016

That is about 9°F hotter than a normal April afternoon in Phra Nakhon Si Ayutthaya (typical high near 99°F).

The three most extreme on record

1 108°F Apr 10, 2016
2 108°F Apr 13, 2016
3 108°F May 6, 2016
❄️ Coldest night
50°F Dec 31, 1975

About 19°F colder than a normal December night in Phra Nakhon Si Ayutthaya (typical low near 69°F).

The three most extreme on record

1 50°F Dec 31, 1975
2 51°F Dec 30, 1975
3 51°F Dec 25, 1999
🌧️ Most rain in one day
10.38 in Sep 14, 2005

More rain in a single day than Phra Nakhon Si Ayutthaya usually gets in the whole month of September (typical September total about 8.9 in).

The three most extreme on record

1 10.38 in Sep 14, 2005
2 7.40 in Oct 5, 1990
3 5.70 in Jun 5, 2013

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.

30°50°70°90°110°130° all-time high 108°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Phra Nakhon Si Ayutthaya's record heat sits well above even a hot day for the season — April's 108°F is about 9°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, Phra Nakhon Si Ayutthaya's warmest days reach the high 90s°F and its coldest nights drop to the high 60s°F. But across the record it has gone as high as 108°F and as low as 50°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 & precipitation — 1991–2020 normals computed from 28 years of daily observations at Suphan Buri, a weather station, about 50 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →