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San Jose Climate Guide
Costa Rica
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Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
23
23 °C (73°F) Maximum Daytime Temperature in January
24
24 °C (75°F) Maximum Daytime Temperature in February
25
25 °C (77°F) Maximum Daytime Temperature in March
25
25 °C (77°F) Maximum Daytime Temperature in April
25
25 °C (77°F) Maximum Daytime Temperature in May
25
25 °C (77°F) Maximum Daytime Temperature in June
24
24 °C (75°F) Maximum Daytime Temperature in July
24
24 °C (75°F) Maximum Daytime Temperature in August
24
24 °C (75°F) Maximum Daytime Temperature in September
24
24 °C (75°F) Maximum Daytime Temperature in October
24
24 °C (75°F) Maximum Daytime Temperature in November
23
23 °C (73°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
15
15 °C (59°F) Minimum Night-time Temperature in January
15
15 °C (59°F) Minimum Night-time Temperature in February
16
16 °C (61°F) Minimum Night-time Temperature in March
16
16 °C (61°F) Minimum Night-time Temperature in April
17
17 °C (63°F) Minimum Night-time Temperature in May
17
17 °C (63°F) Minimum Night-time Temperature in June
17
17 °C (63°F) Minimum Night-time Temperature in July
17
17 °C (63°F) Minimum Night-time Temperature in August
17
17 °C (63°F) Minimum Night-time Temperature in September
17
17 °C (63°F) Minimum Night-time Temperature in October
16
16 °C (61°F) Minimum Night-time Temperature in November
16
16 °C (61°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
7
7 Hours of Sunshine (58% of Daylight Hours) in January
7
7 Hours of Sunshine (58% of Daylight Hours) in February
7
7 Hours of Sunshine (60% of Daylight Hours) in March
7
7 Hours of Sunshine (57% of Daylight Hours) in April
7
7 Hours of Sunshine (52% of Daylight Hours) in May
7
7 Hours of Sunshine (51% of Daylight Hours) in June
6
6 Hours of Sunshine (51% of Daylight Hours) in July
6
6 Hours of Sunshine (50% of Daylight Hours) in August
6
6 Hours of Sunshine (49% of Daylight Hours) in September
6
6 Hours of Sunshine (50% of Daylight Hours) in October
6
6 Hours of Sunshine (53% of Daylight Hours) in November
6
6 Hours of Sunshine (55% 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
13
13 Hours of Daylight in May
13
13 Hours of Daylight in June
13
13 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)
8
8 Days with some Rain in January
6
6 Days with some Rain in February
5
5 Days with some Rain in March
7
7 Days with some Rain in April
18
18 Days with some Rain in May
21
21 Days with some Rain in June
22
22 Days with some Rain in July
23
23 Days with some Rain in August
21
21 Days with some Rain in September
22
22 Days with some Rain in October
18
18 Days with some Rain in November
14
14 Days with some Rain in December
J F M A M J J A S O N D
6
6 mm (0.2 inches) Monthly Rainfall in January
7
7 mm (0.3 inches) Monthly Rainfall in February
9
9 mm (0.4 inches) Monthly Rainfall in March
56
56 mm (2.2 inches) Monthly Rainfall in April
261
261 mm (10.3 inches) Monthly Rainfall in May
296
296 mm (11.7 inches) Monthly Rainfall in June
205
205 mm (8.1 inches) Monthly Rainfall in July
282
282 mm (11.1 inches) Monthly Rainfall in August
372
372 mm (14.6 inches) Monthly Rainfall in September
343
343 mm (13.5 inches) Monthly Rainfall in October
155
155 mm (6.1 inches) Monthly Rainfall in November
36
36 mm (1.4 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)
-
No Heat & Humidity or Frost in January
-
No Heat & Humidity or Frost in February
L
Low Heat & Humidity in March
L
Low Heat & Humidity in April
L
Low Heat & Humidity in May
L
Low Heat & Humidity in June
-
No Heat & Humidity or Frost in July
L
Low Heat & Humidity in August
L
Low Heat & Humidity in September
L
Low Heat & Humidity in October
-
No Heat & Humidity or Frost in November
-
No Heat & Humidity or Frost 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
10
UV 10 (Very High) in December
J F M A M J J A S O N D
Sea Temperature (°C)
San Jose Climate Guide (Historical Weather Averages), Costa Rica
Elev: 1,100 m   Long: 084°04'W   Lat: 09°55'N
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