Climate

Warm and semi arid. The annual mean temperature is 79.5 ºF (26.4 ºC), the hottest month being May with an average of 83.7 ºF (28.7 ºC) and the coolest, January, with 74.1 ºF (23.4 ºC).

The annual precipitation goes up to 30 inches (777 mm). The highest monthly average rainfall is in September with 6.5 inches (166 mm) and the lowest in March with 0.2 inches (5.2 mm). More than 80% of the precipitation occurs during the months of June to September.

Monthly average temperatures in ºF:

	Jan.	Feb.	March	April	May	June	July	Aug.	Sept.	Oct.	Nov.	Dec.	Average
Max.	92.1	94.8	99.7	102.0	104.0	101.0	99.1	97.5	96.4	97.9	92.7	91.9	97.5
Average	74.1	74.8	78.4	82.0	83.7	83.3	82.8	82.2	81.5	80.1	76.6	74.3	79.5
Min.	54.7	54.0	56.7	62.8	66.4	69.6	69.6	70.0	70.2	65.3	61.0	55.9	63.0

Monthly average temperatures in ºC:

	Jan.	Feb.	March	April	May	June	July	Aug.	Sept.	Oct.	Nov.	Dec.	Average
Max.	33.4	34.9	37.6	39.0	40.2	38.3	37.3	36.4	35.8	36.6	33.7	33.3	36.4
Average	23.4	23.8	25.8	27.8	28.7	28.5	28.2	27.9	27.5	26.7	24.8	23.5	26.4
Min.	12.6	12.2	13.7	17.1	19.1	20.9	20.9	21.1	21.2	18.5	16.1	13.3	17.2

Ground water temperature:	82.4 ºF	28 ºC
Average water temperature of the Ría de Celestún:	77.0 ºF	25 ºC
Max. in June:	82.4 ºF	28 ºC
Min. in February:	66.2 ºF	19 ºC

Please check Yahoo's weather pages for the current weather conditions and forecasts for Celestún.

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