worldweather33°Cwarmer than usual
usually 25°C–32°C
warmer than 84% of similar days
night: exceptionally warm
rain: more rain than usual
wind: typical
Weather in Leiria - 14-day forecast
Detailed weather forecast for Leiria, Portugal: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Leiria
today☀️
33°💧 0.6 mm
Sun☀️
29°💧 1.7 mm
Mon☀️
26°💧 0.1 mm
Tue🌤️
25°💧 0.2 mm
Wed☁️
27°💧 0.6 mm
Thu🌤️
30°💧 2.2 mm
Fri☀️
35°💧 0.3 mm
Sat☀️
37°💧 0.7 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Friday 11 Sept in Leiria, the forecast high is 35°C. Typical daytime temperatures at this time of year range from 24°C to 32°C, so it will be exceptionally warm. It is warmer than 96% of similar days.
29°Cnear normal
usually 25°C–32°C
night: warmer than usual
rain: exceptionally wet
wind: typical
26°Cnear normal
usually 25°C–32°C
night: warmer than usual
rain: more rain than usual
wind: stronger than usual
25°Ccooler than usual
usually 25°C–32°C
cooler than 82% of similar days
night: exceptionally warm
rain: more rain than usual
wind: stronger than usual
27°Cnear normal
usually 25°C–32°C
night: warmer than usual
rain: more rain than usual
wind: typical
30°Cnear normal
usually 25°C–32°C
night: exceptionally warm
rain: exceptionally wet
wind: typical
35°Cexceptionally warm
usually 24°C–32°C
warmer than 96% of similar days
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.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1993 (24°C) and the warmest was 1988 (35°C). The current forecast averages 29°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Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window.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.
Weather warnings - Leiria
Heatyellow level
from 3 Sept, 11:00 to 6 Sept, 20:00
Areas: Portugal
High temperatures and risk of overheating. Drink plenty of water, avoid the midday sun and look after the elderly.
Source: national weather service via Meteoalarm (EUMETNET). Yellow - be aware, orange - be prepared, red - take action.
14-day forecast - Leiria
Leiria 30 & 45-day weather - long-range outlook
Next 16 days · forecast
26°
around 18° at night · days with rain: 4
Weeks 3-4 · avg for September
25°
around 14° at night · rain chance 18%
Weeks 5-7 · avg for October
23°
around 14° at night · rain chance 36%
The 30 & 45-day outlook for Leiria: the next 16 days are a numerical forecast updated daily - on average 26° by day and 18° at night. Further out we rely on multi-year climate averages: around 25° in September, and about 23° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Leiria
Saturday5 September 2026
☀️33°clear sky
Sunday6 September 2026
☀️29°clear sky
Monday7 September 2026
☀️26°clear sky
Tuesday8 September 2026
🌤️25°scattered clouds
Wednesday9 September 2026
☁️27°broken clouds
Thursday10 September 2026
🌤️30°scattered clouds
Friday11 September 2026
☀️35°clear sky
Saturday12 September 2026
☀️37°clear sky
Sunday13 September 2026
☀️28°clear sky
Monday14 September 2026
☁️23°broken clouds
Tuesday15 September 2026
🌧️23°light rain
Wednesday16 September 2026
🌧️22°light rain
Thursday17 September 2026
☁️24°broken clouds
Friday18 September 2026
☁️25°broken clouds
Saturday19 September 2026
🌧️15°heavy rain
Sunday20 September 2026
🌧️19°light rain
UV index in Leiria - is it safe to sunbathe?
Today the UV index in Leiria is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.
Sea temperature - Leiria
Water today
20°C
Week avg
19°C
Waves today
0.9 m
How's the water?
brisk
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Leiria weather through the year
Upcoming public holidays in Portugal: Republic Day — 5 October · All Saints Day — 1 November · Restoration of Independence — 1 December.
Nearby and related places
FAQ - Leiria weather
What is the weather like in Leiria today?
Today it is about 33° during the day and 22° at night, clear sky.
How far ahead can I check the forecast for Leiria?
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.