Santa Catarina weather in May
May is one of the best months to visit Santa Catarina: highs of 23°C (73°F) and about 111 mm (4.4 in) of rain on average. Nights average 16°C (61°F) and cloud cover 63% (NASA POWER, 2001–2025 averages). It is the 5th driest month of the year and the 5th coolest. Compared with April, it is cooler and about as wet; June brings highs of 21°C (70°F) and 101 mm (4.0 in) of rain.
Figures are long-term averages for Joinville, the largest city in Santa Catarina. See below for other places.
Is May a good time to visit Santa Catarina?
best month Weather score 69/100.
Yes. May is one of the best months for weather in Santa Catarina.
Does it rain a lot in Santa Catarina in May?
Some rain is normal: about 111 mm (4.4 in) falls in an average May. It is the 5th driest month of the year.
How warm is Santa Catarina in May?
Days average 23°C (73°F) and nights 16°C (61°F).
Santa Catarina weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 28°C (83°F) | 22°C (72°F) | 210 mm | 73% | least pleasant |
| February | 28°C (83°F) | 22°C (72°F) | 173 mm | 69% | fair |
| March | 28°C (82°F) | 22°C (71°F) | 142 mm | 65% | fair |
| April | 26°C (79°F) | 20°C (67°F) | 102 mm | 62% | best |
| May | 23°C (73°F) | 16°C (61°F) | 111 mm | 63% | best |
| June | 21°C (70°F) | 14°C (58°F) | 101 mm | 66% | best |
| July | 21°C (69°F) | 13°C (56°F) | 97 mm | 66% | best |
| August | 21°C (70°F) | 14°C (57°F) | 86 mm | 65% | best |
| September | 22°C (72°F) | 15°C (60°F) | 135 mm | 74% | fair |
| October | 24°C (75°F) | 17°C (63°F) | 148 mm | 78% | fair |
| November | 26°C (78°F) | 19°C (66°F) | 141 mm | 75% | fair |
| December | 27°C (81°F) | 21°C (69°F) | 164 mm | 74% | fair |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
Weather across Santa Catarina in May
Weather can differ a lot within Santa Catarina: coasts, hills and mountains each have their own climate.
| Place | High | Low | Rain | Weather |
|---|---|---|---|---|
| Joinville | 23°C (73°F) | 16°C (61°F) | 111 mm | best |
| Florianópolis | 22°C (72°F) | 15°C (59°F) | 114 mm | best |
| Blumenau | 21°C (69°F) | 12°C (54°F) | 115 mm | best |
| São José | 22°C (72°F) | 15°C (59°F) | 114 mm | best |
| Itajaí | 23°C (73°F) | 16°C (60°F) | 113 mm | best |
| Chapecó | 21°C (70°F) | 11°C (51°F) | 152 mm | fair |
| Criciúma | 20°C (69°F) | 11°C (52°F) | 112 mm | best |
| Palhoça | 22°C (72°F) | 15°C (59°F) | 114 mm | best |
| São José | 19°C (66°F) | 10°C (49°F) | 122 mm | fair |
| Jaraguá do Sul | 20°C (68°F) | 12°C (53°F) | 111 mm | best |
| Lages | 18°C (64°F) | 8°C (47°F) | 127 mm | fair |
| Brusque | 23°C (73°F) | 16°C (60°F) | 113 mm | best |