09.28
mon
mon
DAY
72°F
S 3 mph
precip
70%
70%
NIGHT
62°F
W 2 mph
precip
39%
39%
09.29
tue
tue
DAY
72°F
S 4 mph
precip
70%
70%
NIGHT
64°F
N 1 mph
precip
43%
43%
09.30
wed
wed
DAY
72°F
SE 3 mph
precip
69%
69%
NIGHT
62°F
NW 2 mph
precip
20%
20%
10.01
thu
thu
DAY
74°F
SE 4 mph
precip
44%
44%
NIGHT
64°F
N 1 mph
precip
80%
80%
10.02
fri
fri
DAY
70°F
S 2 mph
precip
78%
78%
NIGHT
64°F
W 1 mph
precip
75%
75%
10.03
sat
sat
DAY
72°F
SW 3 mph
precip
75%
75%
NIGHT
64°F
NE 2 mph
precip
55%
55%
10.04
sun
sun
DAY
72°F
S 3 mph
precip
69%
69%
NIGHT
62°F
NE 2 mph
precip
68%
68%
10.05
mon
mon
DAY
70°F
SE 2 mph
precip
67%
67%
NIGHT
60°F
N 2 mph
precip
42%
42%
10.06
tue
tue
DAY
70°F
E 3 mph
precip
76%
76%
NIGHT
62°F
NE 4 mph
precip
79%
79%
10.07
wed
wed
DAY
66°F
NE 4 mph
precip
64%
64%
NIGHT
62°F
NE 4 mph
precip
43%
43%
10.08
thu
thu
DAY
62°F
NE 4 mph
precip
70%
70%
NIGHT
62°F
NE 4 mph
precip
63%
63%
10.09
fri
fri
DAY
66°F
NE 5 mph
precip
50%
50%
NIGHT
62°F
N 2 mph
precip
55%
55%
10.10
sat
sat
DAY
64°F
NE 4 mph
precip
69%
69%
NIGHT
62°F
NE 5 mph
precip
55%
55%
10.11
sun
sun
DAY
62°F
NE 6 mph
precip
79%
79%
NIGHT
60°F
NE 6 mph
precip
75%
75%
Sea water
temperature
temperature
| San Jose |
Weather in
October
October
| San Jose |
7 day weather
forecast
forecast
| San Jose |
10 day weather
forecast
forecast
| San Jose |
14 day weather
forecast
forecast
| San Jose |
Monthly weather
averages
averages
| San Jose |
Current Weather
Conditions
Conditions
| San Jose |
When is the Best
Time to Visit?
Time to Visit?
| San Jose |
San Jose Sea Water Temperature in September, °F
The average sea surface temperature in September 2026 for San Jose was 90.5°F. The maximum and minimum values were 89.6°F and 91.6°F respectively.
San Jose on the Weather Map
Costa Rica Resorts:
NAME
F°
| Alajuela |  |
+74 |
| Cahuita |  |
+88 |
| El Roble | |
+86 |
| Heredia | |
+68 |
| Jaco |  |
+86 |
| Limon | |
+88 |
| Playas del Coco | |
+86 |
| Puerto Limon | |
+88 |
| Puerto Viejo de Talamanca | |
+88 |
| Quepos | |
+86 |
| Samara | |
+82 |
| San Jose | |
+68 |
| Santa Teresa | |
+86 |
| Tamarindo | |
+86 |
| Tortuguero | |
+88 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
San Jose
Local time: 15:58
28 sep, monday
| 1800 | |
66°F | SW 2 mph |
| 2100 | |
64°F | SW 3 mph |
29 sep, tuesday
| 0000 | |
62°F | W 2 mph |
| 0300 | |
60°F | W 2 mph |
| 0600 |  |
62°F | W 4 mph |
| 0900 | |
74°F | SW 3 mph |
| 1200 | |
72°F | S 4 mph |
| 1500 | |
70°F | SE 2 mph |