Silhouette Island Temperature by Month
Silhouette Island, La Digue, Seychelles 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.
Silhouette Island Monthly Temperatures
The temperature in Silhouette Island changes very little across the seasons, maintaining a similar climate throughout the year. Maximum daytime temperatures range from a comfortable 27°C (81°F) in July to a comfortable 30°C (86°F) in April. Nighttime lows range from 27°C (81°F) in April to 25°C (77°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Silhouette Island by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. April, the warmest month, sees 231 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Silhouette Island vs the Seychelles
The map below shows the annual temperature across the Seychelles. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Silhouette Island vs World: Temperature Compared
Silhouette Island'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:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short 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.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Silhouette Island?
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 Silhouette Island, July is the coolest month, with average highs of 27°C (81°F) and humidity around 80% — considered very high. In April, the warmest month, temperatures average 30°C (86°F) with 80% humidity — conditions that feel very 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.
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 Silhouette Island's weather — including monthly rainfall, sunshine hours, and humidity — visit our Silhouette Island climate page.
