Pattaya memiliki [[iklim tropis keringbasah dan basahkering]] (''Aw'') yang terbagi menjadi musim-musim berikut: panas dan kering (Desember hingga Februari), panas dan lembatlembap (Maret dan April), serta ''panas dan hujan'' (Mei hingga November).
{{Pattaya weatherbox}}
{{Weather box|width=auto
| location = Pattaya (1981–2010)
| metric first = Yes
| single line = Yes
| Jan high C = 30.6
| Feb high C = 31.1
| Mar high C = 31.8
| Apr high C = 32.9
| May high C = 32.4
| Jun high C = 31.7
| Jul high C = 31.4
| Aug high C = 31.2
| Sep high C = 31.0
| Oct high C = 30.8
| Nov high C = 30.5
| Dec high C = 30.0
| year high C =
| Jan low C = 23.0
| Feb low C = 24.4
| Mar low C = 25.4
| Apr low C = 26.3
| May low C = 26.4
| Jun low C = 26.3
| Jul low C = 26.0
| Aug low C = 26.0
| Sep low C = 25.2
| Oct low C = 24.4
| Nov low C = 23.7
| Dec low C = 22.5
| year low C =
| Jan rain mm = 15.6
| Feb rain mm = 14.3
| Mar rain mm = 53.3
| Apr rain mm = 64.0
| May rain mm = 148.3
| Jun rain mm = 119.0
| Jul rain mm = 97.4
| Aug rain mm = 97.6
| Sep rain mm = 204.7
| Oct rain mm = 216.1
| Nov rain mm = 72.1
| Dec rain mm = 8.3
| rain colour = green
| year rain mm =
| Jan rain days = 1
| Feb rain days = 3
| Mar rain days = 4
| Apr rain days = 6
| May rain days = 12
| Jun rain days = 11
| Jul rain days = 11
| Aug rain days = 12
| Sep rain days = 17
| Oct rain days = 18
| Nov rain days = 10
| Dec rain days = 1
| unit rain days = 1 mm
| Jan humidity = 73
| Feb humidity = 77
| Mar humidity = 77
| Apr humidity = 77
| May humidity = 78
| Jun humidity = 77
| Jul humidity = 77
| Aug humidity = 77
| Sep humidity = 81
| Oct humidity = 83
| Nov humidity = 76
| Dec humidity = 70
| source 1 = Departemen Meterologi Thailand (normal 1981–2010), (rata-rata hari hujan 1961–1990)<ref>[http://www.tmd.go.th Thai Meteorological Department]</ref>
