January
Best time
9.5/10
21°C / 6°C · 3 rain days · 9.6 h sun
Days reach 20.6°C with lows near 5.9°C, and rain is rare at just 2.5 days for the month. Skies are fairly clear with 9.6 hours of sun daily. This is one of the best months to visit, cool and dry. New Year's Day falls on 1 January, a public holiday.
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February
Best time
9.6/10
23°C / 8°C · 2 rain days · 10.4 h sun
Expect a high of 23.1°C and only 2 rain days, with sun climbing to 10.4 hours a day. Scores mark this as one of the best months, with mild, dry weather throughout. Constitution Day is observed on 2 February.
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March
Best time
9.6/10
26°C / 10°C · 2 rain days · 11.3 h sun
Temperatures rise to 25.8°C by day, lows near 9.7°C, and rain stays light at under 2 days. Sun hours hit 11.3, among the highest of the year. This is rated a best month to travel. Benito Juárez's birthday is marked on 16 March.
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April
Best time
8.6/10
28°C / 12°C · 2 rain days · 11.8 h sun
Highs reach 28°C with lows of 12°C and still only about 2 rain days. It's warmer and drier than the first quarter, keeping the best-month rating, though scores dip slightly from March. Maundy Thursday and Good Friday fall on 2 and 3 April.
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May
Good
7.4/10
29°C / 14°C · 4 rain days · 12.3 h sun
Heat builds to 29.4°C, the hottest month on record, and rain starts picking up with 4.4 days and 21mm. The verdict drops to good rather than best, as humidity rises before the wet season fully arrives. Labour Day is 1 May.
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June
Good
7.4/10
28°C / 15°C · 9 rain days · 12.2 h sun
Highs ease slightly to 27.8°C but rain becomes frequent, with 8.6 rain days and 59mm falling. This is a good month overall, but travellers should expect regular downpours as the wet season sets in properly.
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July
Best time
7.8/10
26°C / 14°C · 10 rain days · 11.8 h sun
Temperatures sit around 26.4°C while rainfall peaks toward the year's heaviest stretch, with 9.9 rain days and 80mm. Despite the wet weather, this still scores as a best month, reflecting green landscapes and fewer crowds.
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August
Best time
8.0/10
27°C / 15°C · 8 rain days · 11.6 h sun
Highs hold near 26.8°C with rain still common at 8 days and 54mm. Sun hours stay decent at 11.6. This month keeps a best rating, suiting travellers who don't mind frequent but often brief showers.
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September
Best time
7.8/10
25°C / 14°C · 11 rain days · 10.7 h sun
This is the wettest month, with 10.9 rain days and 87mm of rain, while highs cool to 24.5°C. It still scores as a best month, but expect the most frequent rainfall of the year. Independence Day is celebrated on 16 September.
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October
Best time
8.9/10
24°C / 12°C · 5 rain days · 10.2 h sun
Rain eases to 5.3 days and 37mm as highs settle at 24°C. Conditions improve noticeably from September, earning a strong best-month score of 8.9 as the wet season winds down.
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November
Best time
9.4/10
23°C / 9°C · 3 rain days · 10.1 h sun
Dry weather returns, with just 3.1 rain days and highs of 22.7°C. Sun hours average 10.1, and this is one of the best months to visit. Revolution Day is marked on 16 November.
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December
Best time
9.6/10
21°C / 7°C · 2 rain days · 9.5 h sun
Highs cool to 20.7°C with lows near 6.8°C, and rain is light at 1.8 days. This is rated the best month of the year, with clear, dry skies. Christmas Day falls on 25 December.
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