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Cayenne Climate Guide
French Guiana
Metric | Imperial    Bars | Symbols
Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
29
29 °C (84°F) Maximum Daytime Temperature in January
29
29 °C (84°F) Maximum Daytime Temperature in February
29
29 °C (84°F) Maximum Daytime Temperature in March
30
30 °C (86°F) Maximum Daytime Temperature in April
29
29 °C (84°F) Maximum Daytime Temperature in May
30
30 °C (86°F) Maximum Daytime Temperature in June
31
31 °C (88°F) Maximum Daytime Temperature in July
32
32 °C (90°F) Maximum Daytime Temperature in August
32
32 °C (90°F) Maximum Daytime Temperature in September
32
32 °C (90°F) Maximum Daytime Temperature in October
31
31 °C (88°F) Maximum Daytime Temperature in November
30
30 °C (86°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
23
23 °C (73°F) Minimum Night-time Temperature in January
23
23 °C (73°F) Minimum Night-time Temperature in February
23
23 °C (73°F) Minimum Night-time Temperature in March
24
24 °C (75°F) Minimum Night-time Temperature in April
23
23 °C (73°F) Minimum Night-time Temperature in May
23
23 °C (73°F) Minimum Night-time Temperature in June
23
23 °C (73°F) Minimum Night-time Temperature in July
22
22 °C (72°F) Minimum Night-time Temperature in August
23
23 °C (73°F) Minimum Night-time Temperature in September
23
23 °C (73°F) Minimum Night-time Temperature in October
23
23 °C (73°F) Minimum Night-time Temperature in November
23
23 °C (73°F) Minimum Night-time Temperature in December
J F M A M J J A S O N D
Hours of Sunshine
Hours of Daylight
4
4 Hours of Sunshine (34% of Daylight Hours) in January
4
4 Hours of Sunshine (37% of Daylight Hours) in February
5
5 Hours of Sunshine (37% of Daylight Hours) in March
5
5 Hours of Sunshine (41% of Daylight Hours) in April
4
4 Hours of Sunshine (36% of Daylight Hours) in May
5
5 Hours of Sunshine (43% of Daylight Hours) in June
7
7 Hours of Sunshine (56% of Daylight Hours) in July
8
8 Hours of Sunshine (63% of Daylight Hours) in August
8
8 Hours of Sunshine (69% of Daylight Hours) in September
8
8 Hours of Sunshine (70% of Daylight Hours) in October
7
7 Hours of Sunshine (62% of Daylight Hours) in November
5
5 Hours of Sunshine (45% of Daylight Hours) in December
J F M A M J J A S O N D
12
12 Hours of Daylight in January
12
12 Hours of Daylight in February
12
12 Hours of Daylight in March
12
12 Hours of Daylight in April
12
12 Hours of Daylight in May
12
12 Hours of Daylight in June
12
12 Hours of Daylight in July
12
12 Hours of Daylight in August
12
12 Hours of Daylight in September
12
12 Hours of Daylight in October
12
12 Hours of Daylight in November
12
12 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
21
21 Days with some Rain in January
17
17 Days with some Rain in February
22
22 Days with some Rain in March
22
22 Days with some Rain in April
27
27 Days with some Rain in May
24
24 Days with some Rain in June
19
19 Days with some Rain in July
10
10 Days with some Rain in August
5
5 Days with some Rain in September
5
5 Days with some Rain in October
11
11 Days with some Rain in November
18
18 Days with some Rain in December
J F M A M J J A S O N D
367
367 mm (14.4 inches) Monthly Rainfall in January
306
306 mm (12.0 inches) Monthly Rainfall in February
374
374 mm (14.7 inches) Monthly Rainfall in March
439
439 mm (17.3 inches) Monthly Rainfall in April
544
544 mm (21.4 inches) Monthly Rainfall in May
412
412 mm (16.2 inches) Monthly Rainfall in June
200
200 mm (7.9 inches) Monthly Rainfall in July
96
96 mm (3.8 inches) Monthly Rainfall in August
40
40 mm (1.6 inches) Monthly Rainfall in September
46
46 mm (1.8 inches) Monthly Rainfall in October
124
124 mm (4.9 inches) Monthly Rainfall in November
294
294 mm (11.6 inches) Monthly Rainfall in December
J F M A M J J A S O N D
Heat & Humidity / Chance of Frost
UV Index (Maximum)
H
High Heat & Humidity in January
H
High Heat & Humidity in February
H
High Heat & Humidity in March
H
High Heat & Humidity in April
H
High Heat & Humidity in May
VH
Very High Heat & Humidity in June
VH
Very High Heat & Humidity in July
VH
Very High Heat & Humidity in August
VH
Very High Heat & Humidity in September
VH
Very High Heat & Humidity in October
VH
Very High Heat & Humidity in November
H
High Heat & Humidity in December
J F M A M J J A S O N D
11
UV 11+ (Extreme) in January
11
UV 11+ (Extreme) in February
11
UV 11+ (Extreme) in March
11
UV 11+ (Extreme) in April
11
UV 11+ (Extreme) in May
11
UV 11+ (Extreme) in June
11
UV 11 (Extreme) in July
11
UV 11+ (Extreme) in August
11
UV 11+ (Extreme) in September
11
UV 11+ (Extreme) in October
11
UV 11+ (Extreme) in November
11
UV 11 (Extreme) in December
J F M A M J J A S O N D
Sea Temperature (°C)
27
27 °C (81°F) Sea Temperature in January
27
27 °C (81°F) Sea Temperature in February
27
27 °C (81°F) Sea Temperature in March
28
28 °C (82°F) Sea Temperature in April
28
28 °C (82°F) Sea Temperature in May
28
28 °C (82°F) Sea Temperature in June
28
28 °C (82°F) Sea Temperature in July
28
28 °C (82°F) Sea Temperature in August
28
28 °C (82°F) Sea Temperature in September
28
28 °C (82°F) Sea Temperature in October
28
28 °C (82°F) Sea Temperature in November
27
27 °C (81°F) Sea Temperature in December
J F M A M J J A S O N D
Cayenne Climate Guide (Historical Weather Averages), French Guiana
Elev: 0 m   Long: 052°19'W   Lat: 04°56'N
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