Cayo Guillermo weather by month

Check out Cayo Guillermo weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature
Rainfall
Sunshine & daylight
UV levels & humidity

Temperature in Cayo Guillermo (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	81	82	84	88	88	90	91	91	90	88	84	82
Min temperature (night-time)	63	63	64	66	70	73	73	73	72	72	68	64
Heat & Humidity	M	M	M	H	H	VH	VH	VH	VH	H	H	M
Sea temperature	77	77	77	79	81	82	84	84	84	82	81	79

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Cayo Guillermo

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	7	7	8	9	8	7	8	8	7	7	7	7
Daily hours of daylight	11	11	12	13	13	13	13	13	12	12	11	11
UV Index (Maximum)	7	8	10	11	11	11	11	11	11	9	7	6

Rainfall in Cayo Guillermo

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	7	5	6	5	12	15	13	15	15	16	9	7
Average monthly rainfall (inches)	1.7	1.7	2.0	2.4	6.6	6.3	3.5	4.6	6.3	7.2	3.4	1.5

More about Cayo Guillermo

Cayo Guillermo by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Cuba (Cayo Guillermo) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Cayo Guillermo?

Cayo Guillermo has a hot tropical climate with a winter dry season.

Cayo Guillermo weather in January

Expect daytime maximum temperatures of 81°F in Cayo Guillermo, Cuba in January based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 1.7 inches of rainfall in the month.

81
81°F max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
63
63°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
1.7
1.7 inches of monthly rainfall
7
7 (High) UV index
77
77°F sea temperature

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Cayo Guillermo weather in February

Expect daytime maximum temperatures of 82°F in Cayo Guillermo, Cuba in February based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 1.7 inches of rainfall in the month.

82
82°F max day temperature
7
7 hours of sunshine per day
5
5 days with some rainfall
63
63°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
1.7
1.7 inches of monthly rainfall
8
8 (Very High) UV index
77
77°F sea temperature

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Cayo Guillermo weather in March

Expect daytime maximum temperatures of 84°F in Cayo Guillermo, Cuba in March based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 2.0 inches of rainfall in the month.

84
84°F max day temperature
8
8 hours of sunshine per day
6
6 days with some rainfall
64
64°F min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
2.0
2.0 inches of monthly rainfall
10
10 (Very High) UV index
77
77°F sea temperature

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Cayo Guillermo weather in April

Expect daytime maximum temperatures of 88°F in Cayo Guillermo, Cuba in April and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 2.4 inches of rainfall in the month.

88
88°F max day temperature
9
9 hours of sunshine per day
5
5 days with some rainfall
66
66°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
2.4
2.4 inches of monthly rainfall
11
11+ (Extreme) UV index
79
79°F sea temperature

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Cayo Guillermo weather in May

Expect daytime maximum temperatures of 88°F in Cayo Guillermo, Cuba in May and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 6.6 inches of rainfall in the month.

88
88°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
70
70°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
6.6
6.6 inches of monthly rainfall
11
11+ (Extreme) UV index
81
81°F sea temperature

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Cayo Guillermo weather in June

Expect daytime maximum temperatures of 90°F in Cayo Guillermo, Cuba in June and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 6.3 inches of rainfall in the month.

90
90°F max day temperature
7
7 hours of sunshine per day
15
15 days with some rainfall
73
73°F min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
6.3
6.3 inches of monthly rainfall
11
11+ (Extreme) UV index
82
82°F sea temperature

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Cayo Guillermo weather in July

Expect daytime maximum temperatures of 91°F in Cayo Guillermo, Cuba in July and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 3.5 inches of rainfall in the month.

91
91°F max day temperature
8
8 hours of sunshine per day
13
13 days with some rainfall
73
73°F min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
3.5
3.5 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F sea temperature

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Cayo Guillermo weather in August

Expect daytime maximum temperatures of 91°F in Cayo Guillermo, Cuba in August and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 15 days with some rainfall and typically 4.6 inches of rainfall in the month.

91
91°F max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
73
73°F min night temperature
13
13 hours of daylight per day
VH
Very High heat & humidity
4.6
4.6 inches of monthly rainfall
11
11+ (Extreme) UV index
84
84°F sea temperature

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Cayo Guillermo weather in September

Expect daytime maximum temperatures of 90°F in Cayo Guillermo, Cuba in September and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 6.3 inches of rainfall in the month.

90
90°F max day temperature
7
7 hours of sunshine per day
15
15 days with some rainfall
72
72°F min night temperature
12
12 hours of daylight per day
VH
Very High heat & humidity
6.3
6.3 inches of monthly rainfall
11
11 (Extreme) UV index
84
84°F sea temperature

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Cayo Guillermo weather in October

Expect daytime maximum temperatures of 88°F in Cayo Guillermo, Cuba in October and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 7.2 inches of rainfall in the month.

88
88°F max day temperature
7
7 hours of sunshine per day
16
16 days with some rainfall
72
72°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
7.2
7.2 inches of monthly rainfall
9
9 (Very High) UV index
82
82°F sea temperature

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Cayo Guillermo weather in November

Expect daytime maximum temperatures of 84°F in Cayo Guillermo, Cuba in November and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.4 inches of rainfall in the month.

84
84°F max day temperature
7
7 hours of sunshine per day
9
9 days with some rainfall
68
68°F min night temperature
11
11 hours of daylight per day
H
High heat & humidity
3.4
3.4 inches of monthly rainfall
7
7 (High) UV index
81
81°F sea temperature

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Cayo Guillermo weather in December

Expect daytime maximum temperatures of 82°F in Cayo Guillermo, Cuba in December based on long-term weather averages. There are 7 hours of sunshine per day on average.

82
82°F max day temperature
7
7 hours of sunshine per day
7
7 days with some rainfall
64
64°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
1.5
1.5 inches of monthly rainfall
6
6 (High) UV index
79
79°F sea temperature

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