Santo Domingo Temperature by Month

Santo Domingo, Heredia, Costa Rica has a consistently comfortable climate year-round, with daytime highs averaging 24°C (75°F). Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Santo Domingo enjoys a stable climate with temperatures staying pretty much the same throughout the year. Maximum daytime temperatures range from a comfortable 24°C (75°F) in November to a comfortable 26°C (79°F) in April. Nights are consistently cool, with lows between 16°C (61°F) and 15°C (59°F).

The chart below illustrates the average maximum day and minimum night temperatures in Santo Domingo by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. April, the city's warmest month, averages 241 hours of sunshine.

The chart below shows the average temperature throughout the year:

Santo Domingo's average annual maximum temperature is 24°C (75°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Santo Domingo, November is the coolest month, with average highs of 24°C (75°F) and humidity around 79%, considered high. In April, the warmest month, temperatures average 26°C (79°F) with 70% 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.

Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.

Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.

For more on Santo Domingo's weather, including monthly rainfall, sunshine hours, and humidity, visit our Santo Domingo climate page.