December
December · January · February
Mexico · 1991–2020
December leads for comfortable weather in Tulum: typically 29.3°C by day, 17.6°C at night, with 45 mm of rain. Based on measured 1991–2020 NOAA station history.
December · January · February
March · April · February
December · February · January
The weakest month is October, scoring 39 against December’s 76 — 215 mm of rain falls, and days average 30.7°C, 7° above the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 29°C | 17.2°C | 59 mm | 5.7 | 26.7°C | 11 h 02 | 74 | Good coverage |
| February | 29.8°C | 17.9°C | 48 mm | 3.1 | 26.5°C | 11 h 27 | 74 | Good coverage |
| March | 30.8°C | 19.6°C | 35 mm | 2.9 | 26.6°C | 11 h 59 | 69 | Good coverage |
| April | 31.5°C | 20.4°C | 45 mm | 3.1 | 27.2°C | 12 h 35 | 64 | Good coverage |
| May | 31.6°C | 21°C | 108 mm | 5.1 | 28.1°C | 13 h 05 | 52 | Good coverage |
| June | 31.7°C | 21.7°C | 145 mm | 7.9 | 28.6°C | 13 h 21 | 43 | Good coverage |
| July | 32.2°C | 21.2°C | 120 mm | 7.3 | 28.9°C | 13 h 15 | 46 | Good coverage |
| August | 31.7°C | 21.6°C | 82 mm | 6.6 | 29.3°C | 12 h 49 | 53 | Good coverage |
| September | 31.6°C | 21°C | 151 mm | 9.2 | 29.4°C | 12 h 14 | 42 | Good coverage |
| October | 30.7°C | 19.9°C | 215 mm | 8.9 | 29.0°C | 11 h 39 | 39 | Good coverage |
| November | 30°C | 18°C | 70 mm | 4.7 | 28.1°C | 11 h 09 | 68 | Good coverage |
| December | 29.3°C | 17.6°C | 45 mm | 3.9 | 27.3°C | 10 h 55 | 76 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 37.2°C8 Jan 1976 | 6.7°C2 Jan 1980 | 120 mm17 Jan 1986 | 179 mm1986 · driest 0 mm in 1995 | 38 |
| February | 38.9°C9 Feb 2008 | 3.9°C10 Feb 1991 | 100 mm10 Feb 2002 | 248 mm2002 · driest 0 mm in 1992 | 36 |
| March | 41.1°C26 Mar 2007 | 6.7°C6 Mar 1991 | 75 mm6 Mar 2012 | 93 mm1987 · driest 0 mm in 1995 | 35 |
| April | 41.7°C28 Apr 2009 | 6.7°C29 Apr 1992 | 70 mm9 Apr 2003 | 116 mm1992 · driest 0 mm in 1971 | 33 |
| May | 42.8°C8 May 1980 | 7.8°C8 May 1992 | 198 mm19 May 2010 | 379 mm2010 · driest 0 mm in 1987 | 35 |
| June | 38.9°C21 Jun 1983 | 11.1°C24 Jun 1992 | 150 mm26 Jun 2010 | 409 mm1988 · driest 8 mm in 1991 | 35 |
| July | 37.8°C19 Jul 1979 | 8.9°C13 Jul 1975 | 164 mm18 Jul 2005 | 416 mm2005 · driest 0 mm in 1993 | 38 |
| August | 43.9°C20 Aug 1983 | 11.7°C26 Aug 1988 | 140 mm20 Aug 1973 | 367 mm1973 · driest 4 mm in 2009 | 38 |
| September | 40.6°C5 Sep 1988 | 5.0°C29 Sep 1992 | 200 mm14 Sep 1988 | 409 mm1988 · driest 0 mm in 1993 | 37 |
| October | 38.9°C14 Oct 2005 | 5.6°C30 Oct 1992 | 185 mm21 Oct 2005 | 610 mm2005 · driest 0 mm in 1994 | 41 |
| November | 39.4°C9 Nov 1970 | 8.9°C2 Nov 1992 | 80 mm18 Nov 2010 | 259 mm1997 · driest 0 mm in 1991 | 41 |
| December | 36.7°C13 Dec 1976 | 6.7°C30 Dec 1980 | 94 mm3 Dec 1985 | 171 mm1991 · driest 0 mm in 1974 | 39 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 28 | 15 | 2 |
| February | 27 | 18 | 1 |
| March | 28 | 23 | 1 |
| April | 28 | 23 | 1 |
| May | 30 | 25 | 3 |
| June | 29 | 24 | 4 |
| July | 30 | 27 | 3 |
| August | 28 | 23 | 2 |
| September | 28 | 22 | 4 |
| October | 29 | 22 | 5 |
| November | 28 | 19 | 2 |
| December | 28 | 17 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 80% | 20% | 6% | 18% | 27.1–30.9°C |
| February | 86% | 14% | 5% | 11% | 27.9–31.2°C |
| March | 90% | 10% | 4% | 4% | 28.7–32.3°C |
| April | 91% | 10% | 4% | 6% | 29.0–33.4°C |
| May | 83% | 17% | 9% | 19% | 29.8–33.6°C |
| June | 71% | 29% | 14% | 34% | 29.4–33.4°C |
| July | 75% | 24% | 9% | 26% | 30.0–33.5°C |
| August | 73% | 26% | 9% | 31% | 29.8–33.6°C |
| September | 63% | 37% | 16% | 51% | 29.2–33.5°C |
| October | 67% | 33% | 16% | 38% | 29.1–32.0°C |
| November | 78% | 22% | 8% | 27% | 28.6–31.5°C |
| December | 81% | 19% | 6% | 19% | 27.3–30.9°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page