Best Time to Visit Castanhal
Best time: Oct, Nov, Sep, Aug.
Oct is warmest (31.7°C high); Mar is rainiest (479 mm).
Castanhal weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 30.2 | 22.2 | 313 | 6.3 |
| Feb | 29.6 | 22.1 | 386 | 5.9 |
| Mar | 29.6 | 22 | 479 | 5.8 |
| Apr | 30.1 | 22.1 | 388 | 6 |
| May | 30.2 | 22.2 | 282 | 6.6 |
| Jun | 30.3 | 22.1 | 176 | 7.5 |
| Jul | 30.1 | 22 | 146 | 8.2 |
| Aug | 30.6 | 22.3 | 123 | 9.1 |
| Sep | 31.2 | 22.4 | 74 | 9.1 |
| Oct | 31.7 | 22.5 | 53 | 8.6 |
| Nov | 31.7 | 22.6 | 48 | 7.7 |
| Dec | 31.3 | 22.6 | 106 | 6.7 |
Average high temperature
Best months by activity
Overall: OctNovSepAug
Beaches: NovOctSepAug
Hiking: NovOctSepJul
Sightseeing: OctNovSep
Castanhal quick facts
What to pack
Wet months (Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Dec): raincoat and umbrella.
Frequently asked questions
When is the best time to visit Castanhal?
Oct, Nov, Sep, Aug.
What is the rainiest month?
Mar, about 479 mm.
What is the warmest month?
Oct, with average highs of 31.7°C.
Where to stay
See Castanhal hotels · Book Castanhal tours & activities
All destinations · Best time to visit Rio de Janeiro · Best time to visit Vitoria de Santo Antao · Best time to visit Tucurui · Best time to visit Timon
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.