Humacao Temperature by Month
Humacao, Puerto Rico has a consistently comfortable climate year-round, with daytime highs averaging 29°C (84°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Humacao Monthly Temperatures
Year-round, Humacao experiences a consistently comfortable climate. Maximum daytime temperatures range from a very warm 30°C (86°F) in September to a comfortable 27°C (81°F) in the coolest month, February. Nighttime temperatures range from 25°C (77°F) in September to 23°C (73°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Humacao by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. September, the warmest month, sees 236 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Humacao Temperatures: 1976-2026
Browse day-by-day temperature records for Humacao spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Humacao vs Puerto Rico
The map below shows the annual temperature across Puerto Rico. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Humacao vs World: Temperature Compared
Humacao's average annual maximum temperature is 29°C (84°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Humacao?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Humacao, February is the coolest month, with average highs of 27°C (81°F) and humidity around 72% — considered high. In September, the warmest month, temperatures average 30°C (86°F) with 76% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Humacao's weather — including monthly rainfall, sunshine hours, and humidity — visit our Humacao climate page.
