Is it better to stay in the shade or go into air conditioning?

Both. Shade is essential when outside, but during the peak heat of 1:00 PM, finding an air-conditioned space is the only way to effectively lower your heart rate and prevent heat exhaustion.

How do I deal with the constant humidity?

Accept that you will sweat. Bring a small microfiber towel to wipe away moisture, and carry a change of shirt if you are moving between outdoor and indoor (air-conditioned) environments to avoid the 'chill' effect of sweat evaporating too fast.

Staying Comfortable in Tropical Weather

Manage the heat and humidity by shifting your daily schedule to avoid the midday sun and prioritizing lightweight, natural fibers. Focus on electrolyte replenishment and strategic movement to keep your energy levels steady throughout the day.

Shift your schedule. Be outside before 10:00 AM or after 4:00 PM. Use the hours between 11:00 AM and 3:00 PM for indoor activities, resting, or air-conditioned transit. The sun is at its most intense during these peak hours.
Dress for the climate. Wear loose-fitting clothing made of linen or moisture-wicking synthetic blends. Tight-fitting clothes trap heat and sweat against your skin, which prevents natural cooling and increases the risk of heat rash.
Hydrate with purpose. Drink at least 3 liters of water per day. Plain water isn't enough when you are sweating heavily; add a daily electrolyte powder or drink one coconut water to replace lost salts and prevent headaches and fatigue.
Master the 'quick shower' rhythm. Take two to three cool showers a day. If you aren't near a shower, use a damp, cool towel on your neck and pulse points to lower your core body temperature quickly.

Is it better to stay in the shade or go into air conditioning?: Both. Shade is essential when outside, but during the peak heat of 1:00 PM, finding an air-conditioned space is the only way to effectively lower your heart rate and prevent heat exhaustion.
How do I deal with the constant humidity?: Accept that you will sweat. Bring a small microfiber towel to wipe away moisture, and carry a change of shirt if you are moving between outdoor and indoor (air-conditioned) environments to avoid the 'chill' effect of sweat evaporating too fast.