Cayo Guillermo monthly weather averages

Contents

Average daytime temperature
Average rainfall
Average daily sunshine
Day / night temperatures
Sea temperature
Wind speed
Relative humidity
Quick weather stats
Location map

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Cayo Guillermo

Cayo Guillermo average temperature chart (Celsius)

Cayo Guillermo average temperature chart (Fahrenheit)

Average monthly temperatures in Cayo Guillermo (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	26.8	27.7	28.9	30.3	31	31.8	32.7	32.8	32.1	30.5	29	27.6
°F	80.3	81.9	84	86.5	87.8	89.2	90.8	91.1	89.8	87	84.2	81.7

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Cayo Guillermo monthly rainfall chart (mm)

Cayo Guillermo monthly rainfall chart (inches)

Average monthly rainfall in Cayo Guillermo (mm and inches)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
mm	45	43	52	59	166	154	82	111	156	183	87	40
inches	1.8	1.7	2	2.3	6.6	6.1	3.2	4.4	6.2	7.2	3.4	1.6
Rainy days	7	6	6	5	12	15	13	15	15	16	9	7

Average annual rainfall in Cayo Guillermo: 1122.617mm (442 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Cayo Guillermo

Average daily sunshine Cayo Guillermo
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Hrs sunshine	7.6	7.9	8.7	9.1	8.2	7.5	8.7	8.4	7.4	7.2	7.5	7.4

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Cayo Guillermo average minimum / maximum temperatures (Celsius)

Cayo Guillermo average minimum / maximum temperatures (Fahrenheit)

Maximum and minimum daily temperatures in Cayo Guillermo (degrees centigrade and fahrenheit)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Min °C	17.2	17.6	18.4	19.2	21.1	22.7	23.2	23.2	22.6	22	20.5	18.5
Max °C	27.1	28	29.1	30.5	31.2	32	32.9	33.1	32.4	30.8	29.2	27.9
Min °F	63	63.6	65.1	66.5	69.9	72.9	73.8	73.7	72.6	71.5	68.9	65.2
Max °F	71.9	73	74.8	76.7	79.1	81.2	82.5	82.6	81.4	79.4	76.7	73.7

Sea temperature

The graph below shows the average sea temperature.

Cayo Guillermo average sea temperature chart (Fahrenheit)

Average sea temperature around Cayo Guillermo in degrees centigrade and fahrenheit
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
°C	25.1	25	25.4	26.3	27.4	28.7	29.3	29.7	29.6	28.8	27.1	25.9
°F	77.2	77	77.7	79.3	81.3	83.7	84.8	85.4	85.3	83.8	80.8	78.6

Wind speed

The graph below shows the average wind speed.

Cayo Guillermo average winspeed by month (km/h)

Cayo Guillermo average winspeed by month (mph)

Average wind speed in Cayo Guillermo (mph and kmh)
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
km/h	14	14	15	14	12	11	12	12	10	11	13	13
mph	8	9	9	9	8	7	8	7	6	7	8	8

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Average relative humidity in Cayo Guillermo
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
81%	79%	78%	75%	79%	81%	79%	80%	83%	84%	84%	83%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Cayo Guillermo weather stats

Cayo Guillermo weather statistics
Hottest month:	August	32.8°C 91°F
Driest month:	December	40mm 1.6ins
Sunniest month:	March	8.7hrs
Coldest month:	January	26.8°C 80.2°F
Wettest month:	October	183mm 7.2ins
Warmest sea:	August	29.7°C 85.5°F

Map showing location of Cayo Guillermo (22.595, -78.66639)