Cancun, Mexico Climate & Monthly Averages
Cancun has a tropical wet-and-dry climate. July is the hottest month, averaging 88° by day; January is the coldest at 79°.
Rain, not cold, divides the year in Cancun
There is not much of a seasonal calendar in Cancun. Its warmest and coolest months differ by 5°C, against a dataset median nearer 15°C, which leaves 88°F (31°C) in July and 79°F (26°C) in January as the two ends of the year.
The wet-and-dry rhythm at a glance
January sits at the other end of the year: 79°F (26°C) by day, 71°F (22°C) at night. At its warmest, in July, Cancun runs to 88°F (31°C) in the afternoon and back to 79°F (26°C) by dawn. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 94°F (34°C) and the lowest daily minimum 58°F (14°C).
May is the brightest month at 11.9 hours of sun a day, against an annual average of 10.7 - sunnier than roughly 88% of the cities we track.
Days and nights are about 5°C apart on average - narrower than almost anywhere else we cover. Between the average July and the average January lie 5°C, a narrower spread than about 87% of the cities we track. Average highs hold at or above 30°C for 4 months of the year, July through September being the unbroken run.
More climate facts for Cancun
- Hottest month: July - highs near 88°F (31°C)
- Coldest month: January - highs near 79°F (26°C)
- Decade extremes (2015-2024): 94°F (34°C) high · 58°F (14°C) low
- Wettest month: June (18 rainy days) · Sunniest: May (11.9 h sun/day)
- Climate type: tropical wet-and-dry
- Annual swing: 5°C between the average warmest and coolest month · day to night: 5°C
- Months averaging 30°C or hotter: 4
- Average humidity: 78%
Choosing the right part of the year in Cancun
Choose dates by rain, not just temperature
The best time to visit Cancun is generally November to April, when humidity and rainfall are at their lowest, which is what actually varies here. Daytime temperatures in that window sit near 81°F (27°C), with rain on about 12 days a month. For the same question asked the other way round, see where else is warm in November.
What the humidity changes
Pack for Cancun with light clothing for the warm months, proper waterproofs rather than an umbrella - wet days are the norm here and moisture-wicking fabrics for the humidity. July nights average 79°F (26°C), so evenings rarely match the afternoons.
Warm all year: the monthly rain pattern
Each card shows the average high and low. The bar places that month between Cancun's coldest night and warmest afternoon.
January
- Rain
- 13 days
- Sunshine
- 9.3 h
- Daylight
- 11.0 h
February
- Rain
- 10 days
- Sunshine
- 10.5 h
- Daylight
- 11.4 h
March
- Rain
- 9 days
- Sunshine
- 11.4 h
- Daylight
- 12.0 h
April
- Rain
- 7 days
- Sunshine
- 11.7 h
- Daylight
- 12.6 h
May
- Rain
- 14 days
- Sunshine
- 11.9 h
- Daylight
- 13.1 h
June
- Rain
- 18 days
- Sunshine
- 10.7 h
- Daylight
- 13.4 h
July
- Rain
- 15 days
- Sunshine
- 11.8 h
- Daylight
- 13.3 h
August
- Rain
- 20 days
- Sunshine
- 11.2 h
- Daylight
- 12.8 h
September
- Rain
- 22 days
- Sunshine
- 10.7 h
- Daylight
- 12.2 h
October
- Rain
- 22 days
- Sunshine
- 9.9 h
- Daylight
- 11.6 h
November
- Rain
- 15 days
- Sunshine
- 10.2 h
- Daylight
- 11.1 h
December
- Rain
- 14 days
- Sunshine
- 9.6 h
- Daylight
- 10.8 h
Looking for warmer alternatives? Browse warm places by month, or compare Cancun's coolest part of the year: January, February, December.
Monthly temperature and rain table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 79° | 71° | 13 | 2.9 in | 9.3 h/day | 11.0 h | 42% | 76% |
| February | 80° | 72° | 10 | 1.8 in | 10.5 h/day | 11.4 h | 36% | 74% |
| March | 82° | 74° | 9 | 1.4 in | 11.4 h/day | 12.0 h | 29% | 73% |
| April | 85° | 76° | 7 | 1.5 in | 11.7 h/day | 12.6 h | 24% | 74% |
| May | 86° | 77° | 14 | 3.3 in | 11.9 h/day | 13.1 h | 45% | 76% |
| June | 86° | 78° | 18 | 7.8 in | 10.7 h/day | 13.4 h | 61% | 82% |
| July | 88° | 79° | 15 | 3.4 in | 11.8 h/day | 13.3 h | 49% | 80% |
| August | 88° | 79° | 20 | 5.2 in | 11.2 h/day | 12.8 h | 63% | 81% |
| September | 87° | 78° | 22 | 7.2 in | 10.7 h/day | 12.2 h | 75% | 83% |
| October | 85° | 76° | 22 | 7.1 in | 9.9 h/day | 11.6 h | 69% | 81% |
| November | 82° | 74° | 15 | 4.4 in | 10.2 h/day | 11.1 h | 51% | 79% |
| December | 80° | 73° | 14 | 3.3 in | 9.6 h/day | 10.8 h | 46% | 78% |
How Cancun compares for rain and warmth
- Cancun averages 79°F (26°C) across the year - warmer than 90% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
How the calendar changes in warm-weather Cancun
March through May
March through May in Cancun is hot, with daytime highs averaging 84°F (29°C) and nights around 76°F (24°C); rain falls on around 30 of the 90 days. Daylight is generous - around 11.7 hours of sun a day. With the moisture factored in, afternoons feel hotter than the reading suggests - the humidity and dew point converter shows why.
June through August
June through August in Cancun is hot, with daytime highs averaging 87°F (31°C) and nights around 78°F (26°C); rain falls on around 53 of the 90 days. Daylight is generous - around 11.2 hours of sun a day.
September through November
Through September through November, Cancun runs hot: 85°F (29°C) by day, 76°F (24°C) after dark, and rain falls on around 59 of the 90 days. Daylight is generous - around 10.3 hours of sun a day.
December through February
Through December through February, Cancun is pleasantly warm: 80°F (27°C) by day, 72°F (22°C) after dark, and rain falls on around 38 of the 90 days.
Questions about heat and rain in Cancun
How cold does Cancun get in winter?
How much does the weather change through the year in Cancun?
How hot does Cancun get in summer?
Is Cancun warmer or cooler than most cities?
Cancun temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.