Guanaja Temperature by Month
The average annual maximum temperature in Guanaja, Bay Islands, Honduras is 29°C (84°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Guanaja compares to cities worldwide.
Guanaja Monthly Temperatures
Year-round, Guanaja experiences a consistently comfortable climate. Maximum daytime temperatures range from a comfortable 30°C (86°F) in September to a comfortable 27°C (81°F) in the coolest month, January. Nighttime temperatures range from 27°C (81°F) in September to 24°C (75°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Guanaja by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
35-year average (1985-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Guanaja Temperatures: 1976-2026
Browse day-by-day temperature records for Guanaja spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Guanaja vs Honduras
The map below shows the annual temperature across Honduras. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Guanaja vs World: Temperature Compared
Guanaja'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:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Guanaja's weather — including monthly rainfall, sunshine hours, and humidity — visit our Guanaja climate page.
