worldweather

Weather in Perth - 14-day forecast

Detailed weather forecast for Perth, Scotland: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Perth
today☁️ 18°💧 0.3 mm
Sun🌧️ 16°💧 4 mm
Mon🌧️ 14°💧 1.2 mm
Tue🌧️ 15°💧 4.4 mm
Wed🌤️ 16°💧 0.3 mm
Thu☁️ 13°💧 3.9 mm
Fri☁️ 16°💧 3.8 mm
Sat🌧️ 16°💧 0.3 mm
Forecast vs 1991-2020 climate normal

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 Perth, the forecast high is 13°C. Typical daytime temperatures at this time of year range from 14°C to 17°C, so it will be exceptionally cool. It is cooler than 91% of similar days.

18°Cwarmer than usual
usually 14°C–17°C
warmer than 89% of similar days
night: exceptionally warm rain: less rain than usual wind: typical
16°Cnear normal
usually 14°C–17°C
night: exceptionally warm rain: more rain than usual wind: typical
14°Ccooler than usual
usually 14°C–17°C
cooler than 75% of similar days
night: warmer than usual rain: typical rainfall wind: stronger than usual
15°Cnear normal
usually 14°C–17°C
night: exceptionally warm rain: more rain than usual wind: stronger than usual
16°Cnear normal
usually 14°C–17°C
night: near normal rain: less rain than usual wind: typical
13°Cexceptionally cool
usually 14°C–17°C
cooler than 91% of similar days
night: exceptionally warm rain: more rain than usual wind: lighter than usual
16°Cnear normal
usually 14°C–17°C
night: exceptionally warm rain: more rain than usual wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
10°18°25° 1981: 17°C1982: 13°C1983: 13°C1984: 15°C1985: 13°C1986: 13°C1987: 14°C1988: 17°C1989: 15°C1990: 16°C1991: 17°C1992: 14°C1993: 14°C1994: 14°C1995: 15°C1996: 16°C1997: 16°C1998: 16°C1999: 18°C2000: 16°C2001: 15°C2002: 15°C2003: 17°C2004: 17°C2005: 17°C2006: 18°C2007: 18°C2008: 15°C2009: 16°C2010: 16°C2011: 15°C2012: 15°C2013: 15°C2014: 16°C2015: 15°C2016: 17°C2017: 15°C2018: 15°C2019: 15°C2020: 15°C2021: 20°C2022: 18°C2023: 21°C2024: 16°C2025: 17°C 2026 forecast: 16°C current forecast 16°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 16°C by day. The coolest year was 1986 (13°C) and the warmest was 2023 (21°C). The current forecast averages 16°C - close to the historical median.

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 - Perth

Perth - 14-day weather forecast infographic

Perth 30 & 45-day weather - long-range outlook

Next 16 days · forecast
16°
around 13° at night · days with rain: 9
Weeks 3-4 · avg for September
17°
around 11° at night · rain chance 39%
Weeks 5-7 · avg for October
13°
around 8° at night · rain chance 51%
The 30 & 45-day outlook for Perth: the next 16 days are a numerical forecast updated daily - on average 16° by day and 13° at night. Further out we rely on multi-year climate averages: around 17° in September, and about 13° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Perth

Saturday5 September 2026
☁️18°overcast clouds
sunrise 06:24 · sunset 20:00 · night 13° · evening 15° · rain 0.29 mm · humidity 51% · wind 7 m/s · clouds 93%
Sunday6 September 2026
🌧️16°moderate rain
sunrise 06:26 · sunset 19:57 · night 17° · evening 17° · rain 3.96 mm · humidity 96% · wind 7 m/s · clouds 100%
Monday7 September 2026
🌧️14°light rain
sunrise 06:28 · sunset 19:54 · night 11° · evening 13° · rain 1.15 mm · humidity 75% · wind 10 m/s · clouds 100%
Tuesday8 September 2026
🌧️15°light rain
sunrise 06:30 · sunset 19:52 · night 12° · evening 13° · rain 4.39 mm · humidity 58% · wind 10 m/s · clouds 61%
Wednesday9 September 2026
🌤️16°scattered clouds
sunrise 06:32 · sunset 19:49 · night 10° · evening 13° · rain 0.27 mm · humidity 51% · wind 5 m/s · clouds 30%
Thursday10 September 2026
☁️13°overcast clouds
sunrise 06:34 · sunset 19:46 · night 13° · evening 15° · rain 3.9 mm · humidity 88% · wind 4 m/s · clouds 100%
Friday11 September 2026
☁️16°broken clouds
sunrise 06:36 · sunset 19:44 · night 12° · evening 14° · rain 3.75 mm · humidity 66% · wind 8 m/s · clouds 73%
Saturday12 September 2026
🌧️16°light rain
sunrise 06:38 · sunset 19:41 · night 11° · evening 14° · rain 0.3 mm · humidity 67% · wind 3 m/s · clouds 83%
Sunday13 September 2026
☁️18°broken clouds
sunrise 06:40 · sunset 19:38 · night 12° · evening 16° · humidity 61% · wind 2 m/s · clouds 62%
Monday14 September 2026
☁️16°overcast clouds
sunrise 06:42 · sunset 19:35 · night 13° · evening 14° · rain 1.08 mm · humidity 59% · wind 5 m/s · clouds 98%
Tuesday15 September 2026
☁️15°overcast clouds
sunrise 06:44 · sunset 19:33 · night 12° · evening 14° · rain 0.18 mm · humidity 80% · wind 6 m/s · clouds 100%
Wednesday16 September 2026
🌧️17°light rain
sunrise 06:46 · sunset 19:30 · night 13° · evening 13° · rain 1.17 mm · humidity 72% · wind 9 m/s · clouds 87%
Thursday17 September 2026
🌧️15°light rain
sunrise 06:48 · sunset 19:27 · night 13° · evening 13° · rain 0.42 mm · humidity 63% · wind 7 m/s · clouds 100%
Friday18 September 2026
🌧️16°moderate rain
sunrise 06:50 · sunset 19:25 · night 10° · evening 13° · rain 12.15 mm · humidity 81% · wind 7 m/s · clouds 88%
Saturday19 September 2026
☁️18°overcast clouds
sunrise 06:52 · sunset 19:22 · night 15° · evening 17° · rain 6.03 mm · humidity 81% · wind 5 m/s · clouds 100%
Sunday20 September 2026
☁️19°overcast clouds
sunrise 06:54 · sunset 19:19 · night 19° · evening 19° · humidity 71% · wind 9 m/s · clouds 100%

UV index in Perth - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTPerth03681111+2.9UV LOWtoday, daily maxYou can safely stay outside. Sunscreen only mattersfor very long exposure.3Sat5.092Sun6.094Mon7.094Tue8.094Wed9.091Thu10.092Fri11.091Sat12.091Sun13.094Mon14.093Tue15.092Wed16.094Thu17.092Fri18.092Sat19.093Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Perth is 3 (low). You can safely stay outside. Sunscreen only matters for very long exposure.

Pollen in Perth - info for allergy sufferers

PLANT POLLEN · 4-DAY FORECASTPerthHighest pollen today: Grasses1 grains/m³ · low leveltoday5.09tomorrow6.09Mon7.09Tue8.09Grasses1---nonelowmoderatehighvery highoff season: alder, birch, mugwort, olive, ragweed · values in grains/m³ (daily peak)pogodapodroze.pl · 2026-09-05
Today grasses pollen is highest in Perth - about 1 grains/m³, low level. Most allergy sufferers should not feel strong symptoms. Pollen levels are a CAMS model forecast and are indicative.

Perth weather through the year

Perth - annual climate

Warmest, driest months on average: May, June, July, August.

Upcoming public holidays in Scotland: St Andrew's Day — 30 November · Christmas Day — 25 December · Boxing Day — 28 December.

Nearby and related places

DundeeSt AndrewsLinlithgowEdinburghGlasgowAberdeenNewcastleBelfastYork

FAQ - Perth weather

What is the weather like in Perth today?
Today it is about 18° during the day and 13° at night, overcast clouds.
How far ahead can I check the forecast for Perth?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.