The hottest month in Colombia is July when the average maximum temperature is 33°, average temperature is 29° and average minimum temperature is 26°.
The coolest month in Colombia is January when the average maximum temperature is 31°, average temperature is 28° and average minimum temperature is 24°.
The longest days in Colombia are in June, with an average of 12.8 hours of daylight per day. January has the shortest days with an average of 11.5 hours of daylight per day.
The sunniest days in Colombia are in February which has the most hours of sunshine per day with an average of 7.4 hours of sunshine per day, making it a quite sunny month with some cloud cover. October has the least sunshine with an average of 5.1 hours of sunshine per day, making it a sunny month that is overcast at times.
The ultraviolet index is the highest in April when it reaches 14.8 and lowest in December when it reaches 10.1.
An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.
The warmest sea water temperatures in Colombia are found in January when they peak at 27° and lowest in August when they dip to 23°.
The sea is best for swimming between December and May when the temperature is above 25° which is warm and pleasant for relaxing and swimming for long periods.
The wettest month in Colombia is August with 3.7cm of rain and October has the most days of rain with 8.3 days with some rain, a dry time to visit the beach.
The driest month in Colombia is February with 0.1cm of rain and January has the fewest days of rain with 0.9 days with some rain, an extremely dry time to visit the beach.
The most humid month in Colombia is September with a dew point (an indicator of humidity) of 26° which is very uncomfortable and fairly oppressive unless you are on a beach. At night you would most likely require airconditioning.
The least humid month in Colombia is February with a dew point of 24° which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.
The most windy month in Colombia is February when the average maximum windspeed is 24kmh and the average wind speed is 11kmh.
The least windy month in Colombia is October when the average maximum windspeed is 18kmh and the average wind speed is 7kmh.