Weather in Easter Island in September 2025
- September is usually the driest month of the year in Easter Island
Average weather
Average temperature in Easter Island in September
The expected average maximum temperature in September is +18°C with a maximum of +20°C and a minimum of +13°C.
The average maximum temperature goes down 29% by the end of the month, compared with the beginning of the month, from +19°C to +17°C.
Is Easter Island warm or cold in September?
Easter Island is typically mild in September.
Maximum temperatures go up compared to the previous month from +18°C to +18°C. The minimum temperature also goes up from +17°C to +17°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
September is one of the coolest months in Easter Island, here is the comparison with other months:
Climate in Easter Island in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +18°C | +18°C | +19°C | ||||
| Min. temperature | ||||||
| +12°C | +13°C | +13°C | ||||
| Max. temperature | ||||||
| +21°C | +21°C | +21°C | ||||
| Rainfall | ||||||
| 72 mm | 67 mm | 54 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 4 m/s | ||||
| Humidity | ||||||
| 75% | 74% | 74% | ||||
| Air pressure | ||||||
| 1020 HPa | 1021 HPa | 1021 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 1 | ||||
| Cloudy days | ||||||
| 14 | 15 | 16 | ||||
| Rainy days | ||||||
| 16 | 15 | 15 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September often has better weather than August. The temperature levels stay the same in the area of +18°C for average maximum temperature during the day. As September arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 72 mm to 67 mm. It feels drier, as humidity decreases from 75% to 74%. The average wind speed doesn’t change much during September, staying around 5 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
October brings much the same weather, it remains good.
Wind
The average wind speed is 6 m/s getting up to 11 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Easter Island is gradually increasing during September, going from 3 m/s to 10 m/s over the course of the month.
Rain
How was the weather last September in Easter Island?
Climate Change over Years
The climate in Easter Island in September has not changed much over the last 43 years.
The average temperature was the lowest in 1998 (+20°C) and the highest in 2002 (+21°C). The driest year was 2022 with only 418 mm of rainfall, and the wettest year was 2009 with 1401 mm.
FAQ
Is September a good time to visit Easter Island?
Can you sunbathe in Easter Island in September?
Is Easter Island rainy in September?
Is it sunny in Easter Island in September?
Other cities in Chile
Monthly weather in Easter Island
Source of the data
For this page, we’ve looked at the typical weather in Easter Island, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.