A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z
| Location | Type | Country | Continent | Website |
| Jamaica | Country and Island | Jamaica | North America | weather-jamaica.com |
| Japan | Country | Japan | Asia | weather-japan.com |
| Jakarta | City | Indonesia | Asia | weatherjakarta.com |
| Java | Islands | Indonesia | Asia | weatherjava.com |
| Jayapura | City | Indonesia | Asia | weatherjayapura.com |
| Jersey | Islands | United Kingdom | Europe | weatherjersey.com |
| Jerusalem | City | Israel | Asia | weatherjerusalem.com |
| Johannesburg | City | South Africa | Africa | weatherjohannesburg.com |
| Johnston Island | Islands | United States of America | North America | weatherjohnstonisland.com |
| Jordan | Country | Jordan | Asia | weatherjordan.com |
| Juan Fernandez Islands | Islands | Chile | South America | weatherjuanfernandezislands.com |
| Juneau | City | United States of America | North America | weatherjuneau.com |
