Mexico

Mérida in September: weather & travel advice

This month's data profile

Rain shapes the decision

Mérida in September is climatically mixed. The average daily high is around 31 °C. With about 23 rainy days it is very wet.

Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.

Rank among 12 monthly averages

38/100 · #9

Warmth

Dryness

#12

Sun

Published best categories: none

Cathedral and colonial buildings on Plaza Grande in Mérida

Mérida · SeptemberPhoto: Gary Todd · CC0

Average high: 31 °C
Average low: 24 °C
Rainy days (est.): 23 rainy days (est.)
Sun (est.): 7 h/day
Humidity: 84 %

Climate evidence with direct month comparison

The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.

Climate averages for Mérida: selected and adjacent months
Month	Avg high °C	Avg low °C	Rainy days (est.)	Precipitation mm	Sun h/day (est.)	Humidity %	Wind m/s	Score
August	32	24	23	150	7.9	80	0.2	35
September (selected)	31	24	23	176	7.2	84	0.2	38
October	30	23	16	125	6.1	83	0.2	50

How do the previous and next months compare?

Baseline: September (38/100)

Positive and negative values show the change from the selected month.

	Score Δ	Average high Δ	Average low Δ	Rainy days Δ	Rain Δ	Sun Δ	Humidity Δ	Wind Δ
August	-3	+1.1 °C	±0 °C	-0.4	-26.6 mm	+0.7 h	-4.3 %	±0 m/s
October	+12	-1.2 °C	-1.3 °C	-7	-51.9 mm	-1.1 h	-1.1 %	±0 m/s

All twelve months in context

JanGood76 FebGood72 MarGood65 AprLimited59 MayLimited51 JunUnsuitable36 JulUnsuitable36 AugUnsuitable35 SepUnsuitable38 OctLimited50 NovGood70 DecGood75

Rainy days (estimated)

Sunshine hours (estimated)h/day

Average daily high°C

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Useful next decisions

Mérida · Month by month

Bangkok · September Udaipur · September Ho Chi Minh City · September Siem Reap · September

Frequently asked questions

How warm is Mérida in September?

The average daily high is around 31 °C, with an average daily low of about 24 °C.

Does it rain a lot in Mérida in September?

The curated estimate is about 23 rainy days per month, not a directly measured long-term average. Total precipitation averages around 176 mm for the month. A rainy day does not mean all-day rain.

When is the best time to visit Mérida?

By the climate score, January, February, November and December are the strongest months for Mérida. September is not among them.