January
January · February · December
Mexico · 1991–2020
January leads for comfortable weather in Uh May: typically 29.5°C by day, 17.7°C at night, with 52 mm of rain. Based on measured 1991–2020 NOAA station history.
January · February · December
March · December · February
January · February · December
The weakest month is September, scoring 24 against January’s 72 — days average 34.3°C, 10° 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 | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | 29.5°C | 17.7°C | 52 mm | 5.7 | 11 h 04 | 72 | Good coverage |
| February | 30.8°C | 18°C | 41 mm | 4 | 11 h 29 | 70 | Strong coverage |
| March | 32.2°C | 19.1°C | 37 mm | 3 | 11 h 59 | 65 | Strong coverage |
| April | 34°C | 21.2°C | 34 mm | 2.6 | 12 h 34 | 56 | Strong coverage |
| May | 34.7°C | 22.8°C | 121 mm | 7.2 | 13 h 02 | 35 | Strong coverage |
| June | 33.9°C | 23.6°C | 182 mm | 10.4 | 13 h 18 | 25 | Strong coverage |
| July | 34.2°C | 23.2°C | 104 mm | 9.2 | 13 h 12 | 36 | Strong coverage |
| August | 34.7°C | 23.3°C | 146 mm | 10 | 12 h 47 | 28 | Good coverage |
| September | 34.3°C | 23°C | 170 mm | 13 | 12 h 14 | 24 | Strong coverage |
| October | 32.6°C | 22°C | 203 mm | 13.4 | 11 h 40 | 26 | Strong coverage |
| November | 31°C | 19.7°C | 103 mm | 7.8 | 11 h 11 | 55 | Good coverage |
| December | 29.7°C | 18.4°C | 50 mm | 6.3 | 10 h 58 | 70 | Good coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 37.0°C13 Jan 1969 | 6.5°C14 Jan 1956 | 80 mm18 Jan 1980 | 157 mm1994 · driest 0 mm in 1956 | 64 |
| February | 39.0°C27 Feb 1958 | 7.0°C10 Feb 1968 | 99 mm6 Feb 2022 | 154 mm1965 · driest 0 mm in 2023 | 67 |
| March | 42.0°C28 Mar 1984 | 8.0°C14 Mar 1968 | 132 mm3 Mar 1996 | 145 mm1996 · driest 0 mm in 2020 | 68 |
| April | 44.0°C22 Apr 1964 | 10.0°C15 Apr 1971 | 74 mm23 Apr 1959 | 116 mm1995 · driest 0 mm in 1968 | 63 |
| May | 40.5°C25 May 1980 | 13.5°C10 May 1958 | 136 mm18 May 2010 | 353 mm1960 · driest 0 mm in 1963 | 66 |
| June | 39.5°C3 Jun 1981 | 13.0°C5 Jun 1956 | 320 mm21 Jun 1954 | 488 mm1954 · driest 6 mm in 2019 | 66 |
| July | 39.0°C25 Jul 1975 | 15.5°C18 Jul 1958 | 100 mm15 Jul 1960 | 511 mm1981 · driest 19 mm in 1977 | 66 |
| August | 38.8°C11 Aug 2023 | 18.5°C5 Aug 1974 | 111 mm21 Aug 1959 | 311 mm1998 · driest 24 mm in 2006 | 65 |
| September | 39.8°C25 Sep 2019 | 16.0°C24 Sep 1974 | 244 mm14 Sep 1988 | 495 mm1981 · driest 35 mm in 2006 | 68 |
| October | 38.0°C6 Oct 1969 | 13.5°C25 Oct 1965 | 162 mm5 Oct 1954 | 422 mm1983 · driest 32 mm in 2010 | 66 |
| November | 37.5°C1 Nov 1985 | 9.0°C25 Nov 1970 | 115 mm23 Nov 1997 | 444 mm1997 · driest 3 mm in 2008 | 65 |
| December | 35.0°C5 Dec 1965 | 7.5°C15 Dec 1968 | 82 mm31 Dec 2005 | 136 mm1972 · driest 0 mm in 1969 | 59 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 27 | 14 | 1 |
| February | 25 | 19 | 1 |
| March | 27 | 24 | 1 |
| April | 27 | 27 | 1 |
| May | 28 | 27 | 3 |
| June | 26 | 25 | 4 |
| July | 27 | 26 | 4 |
| August | 27 | 26 | 4 |
| September | 26 | 25 | 4 |
| October | 27 | 25 | 6 |
| November | 26 | 20 | 3 |
| December | 28 | 16 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 80% | 20% | 5% | 21% | 28.0–30.7°C |
| February | 85% | 15% | 5% | 9% | 28.7–32.1°C |
| March | 89% | 10% | 4% | 7% | 30.7–34.0°C |
| April | 91% | 10% | 4% | 6% | 32.2–35.0°C |
| May | 78% | 22% | 11% | 30% | 32.4–36.4°C |
| June | 62% | 38% | 17% | 53% | 31.7–35.1°C |
| July | 64% | 36% | 15% | 52% | 32.2–35.8°C |
| August | 62% | 38% | 16% | 53% | 32.2–36.2°C |
| September | 53% | 47% | 20% | 72% | 31.9–35.7°C |
| October | 59% | 41% | 18% | 51% | 31.0–33.8°C |
| November | 72% | 28% | 10% | 31% | 29.2–31.9°C |
| December | 79% | 21% | 5% | 20% | 28.0–30.8°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