How does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
NASA POWER
Thursday 10 Sept in Pitcairn Islands, the forecast high is 18°C. Typical daytime temperatures at this time of year range from 20°C to 23°C, so it will be exceptionally cool. It is cooler than 99% of similar days.
20°Ccooler than usual
usually 20°C–23°C
cooler than 81% of similar days
night: near normalrain: typical rainfallwind: exceptionally light
20°Ccooler than usual
usually 20°C–23°C
cooler than 83% of similar days
night: near normalrain: less rain than usualwind: exceptionally light
21°Cnear normal
usually 20°C–23°C
night: warmer than usualrain: typical rainfallwind: stronger than usual
19°Cexceptionally cool
usually 20°C–23°C
cooler than 96% of similar days
night: cooler than usualrain: exceptionally wetwind: exceptionally strong
From 1981 to 2025, the 5-11 Sept period averaged 21°C by day. The coolest year was 1998 (20°C) and the warmest was 2017 (23°C). The current forecast averages 19°C - lower than in 100% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
14-day forecast - Pitcairn Islands
Day-by-day forecast for Pitcairn Islands
Saturday5 September 2026
🌧️20°light rain
night 20° · evening 21° · rain 1.02 mm · humidity 72% · wind 4 m/s · clouds 4%
Sunday6 September 2026
🌧️20°light rain
night 20° · evening 20° · rain 0.1 mm · humidity 73% · wind 4 m/s · clouds 18%
Monday7 September 2026
🌧️21°light rain
night 21° · evening 21° · rain 2.05 mm · humidity 81% · wind 11 m/s · clouds 82%
Tuesday8 September 2026
🌧️19°heavy rain
night 19° · evening 19° · rain 29.25 mm · humidity 78% · wind 15 m/s · clouds 36%
Wednesday9 September 2026
🌧️19°light rain
night 18° · evening 18° · rain 0.67 mm · humidity 62% · wind 11 m/s · clouds 23%
Thursday10 September 2026
☁️18°broken clouds
night 18° · evening 18° · rain 0.27 mm · humidity 51% · wind 4 m/s · clouds 77%
Friday11 September 2026
☁️19°overcast clouds
night 19° · evening 19° · rain 0.45 mm · humidity 58% · wind 5 m/s · clouds 90%
Saturday12 September 2026
☁️19°overcast clouds
night 19° · evening 19° · rain 0.88 mm · humidity 63% · wind 7 m/s · clouds 98%
Sunday13 September 2026
🌧️20°light rain
night 20° · evening 20° · rain 0.15 mm · humidity 78% · wind 8 m/s · clouds 100%
Monday14 September 2026
🌧️21°light rain
night 21° · evening 21° · rain 1.55 mm · humidity 86% · wind 8 m/s · clouds 95%
Tuesday15 September 2026
🌧️22°light rain
night 21° · evening 22° · rain 2.68 mm · humidity 83% · wind 8 m/s · clouds 99%
Wednesday16 September 2026
🌧️21°light rain
night 20° · evening 20° · rain 0.57 mm · humidity 77% · wind 9 m/s · clouds 100%
Thursday17 September 2026
🌧️19°light rain
night 19° · evening 20° · rain 0.43 mm · humidity 69% · wind 6 m/s · clouds 23%
Friday18 September 2026
🌤️20°scattered clouds
night 20° · evening 20° · rain 1.18 mm · humidity 68% · wind 4 m/s · clouds 45%
Saturday19 September 2026
🌧️20°light rain
night 20° · evening 20° · rain 1.43 mm · humidity 67% · wind 5 m/s · clouds 97%