Diamond Rock Temperature by Month
The average annual maximum temperature in Diamond Rock, Roatan, Honduras is 29°C (84°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Diamond Rock compares to cities worldwide.
Diamond Rock Monthly Temperatures
Diamond Rock enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a comfortable 27°C (81°F) in January to a comfortable 30°C (86°F) in September. Nights are consistently cool, with lows between 27°C (81°F) and 24°C (75°F).
The chart below illustrates the average maximum day and minimum night temperatures in Diamond Rock by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
39-year average (1977-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Diamond Rock Temperatures: 1976-2026
Browse day-by-day temperature records for Diamond Rock spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Diamond Rock 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
Diamond Rock vs World: Temperature Compared
Diamond Rock'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.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Diamond Rock's weather — including monthly rainfall, sunshine hours, and humidity — visit our Diamond Rock climate page.
