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Leiria climate
Leiria's mild year is strongest from spring through autumn
Leiria's climate display places the average summer high at 83°F, with about 20 days above 90°F, an average winter low of 44°F, and about three days below freezing. Nine months are listed as comfortable, March through November are the best months, and January is the toughest. The display labels allergies Low, heat risk Moderate, and drought risk Medium from 0.4 to 0.6.
Humidity is 76 percent and annual solar exposure is 1,696 peak sun hours. Air quality is labeled Excellent at 4.4 out of 5, while the long term fine particle row is labeled Good at 8.8 micrograms per cubic metre for the 2021 to 2025 modeled average. The climate display labels allergies Low, heat risk Moderate, and drought risk Medium from 0.4 to 0.6. Mild temperatures still leave questions about damp, heating, ventilation, shade, rain, and the way the home feels indoors.
Living through the seasons
Winters are the easier season. Summer heat deserves a closer look.
- Overall Comfort
- Excellent
4.2 / 5
- Average Summer High
- 83°F
- Days Above 90°F
- 20 days/year
- Summer Feel
- Very Good
Mild · 83°F
Excellent
4.1 / 5
- Average Winter Low
- 44°F / 7°C
- Days Below Freezing
- 3 days/year
- Winter Feel
- Excellent
Very Good
Excellent
4.7 / 5
The shape of the year
Humidity, comfortable months, and sunshine show how the seasons differ.
- Humidity
- 76%
- Comfortable Months
- 9 months
- Solar Exposure
- 1696 peak sun hrs/yr
Very Good
Good
Air, allergies, and weather
Air quality and allergies shape day to day comfort. The best months and weather risks help with timing.
Air and allergies
- Air Quality
- Excellent
- Allergy Levels
- Low
4.4 / 5
Very Good
Current AQI
Checking…
Current PM2.5
Checking…
Timing and weather
- Long Term Fine Particle Pollution
- 8.8 µg/m³ 2021-2025 modeled average
- Best Months
- Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
- Toughest Months
- Jan
- Heat Risk
- Moderate
- Drought Risk
- Medium (0.4-0.6)
- Weather Volatility
- Excellent
Good · 8.8 µg/m³ 2021-2025 modeled average
Good
4.5 / 5
Leiria in everyday life
Could Leiria work for you?
What may work well
- The average summer high is 83°F and the average winter low is 44°F in the published display.
- Nine months are listed as comfortable, with March through November the best months.
- The display shows about three days below freezing and Low allergy levels.
- Long term fine particle pollution is labeled Good at 8.8 micrograms per cubic metre for the 2021 to 2025 modeled average.
What to think about
- Humidity is 76 percent, so damp, ventilation, heating, and insulation still deserve a close home review.
- January is the toughest month in the display even though the winter cold is limited.
- Heat risk is Moderate and drought risk is Medium from 0.4 to 0.6, so summer water and shade questions remain practical.
- Climate and air summaries do not tell you how one home feels or what one person's exposure will be.
Plan for Leiria's damp edge as well as its mild months
Visit in January and a warm month
Compare the home's morning and afternoon comfort, heating, ventilation, shade, daylight, damp, rain, and the route to care during both parts of the year.
Price heating and moisture care
Ask about insulation, windows, ventilation, heating, energy cost, moisture control, drying space, roof, drainage, and maintenance before choosing the home.
Choose indoor options for wet days
Keep cultural facilities, Villa Portela, museums, reading, home activities, and practical errands available when parks and river paths are less inviting.
Check allergy and air needs
Use the Low allergy label and the Good modeled fine particle row as planning references, then consider the household's ventilation, filtration, and personal needs.
Questions retirees ask
What are Leiria's typical summer and winter temperatures?
The published display shows an average summer high of 83°F and an average winter low of 44°F. About 20 days rise above 90°F and about three days fall below freezing, while shade, wind, damp, heating, and the home affect personal comfort.
Does Leiria get extreme heat or freezing weather?
The climate summary lists about 20 days above 90°F and about three days below freezing each year. Those are planning summaries, so a home still needs cooling, heating, insulation, and a wet weather plan.
Is Leiria humid?
The displayed humidity is 76 percent. Ask how the home handles moisture through ventilation, insulation, windows, heating, daylight, and a place to dry clothes and equipment.
What is Leiria's toughest month?
January is the toughest month in the current climate display. Compare homes during the cooler and wetter edge when possible rather than judging only from a pleasant spring visit.
What should I ask about climate before choosing a home?
Ask about damp, drainage, heating, insulation, ventilation, daylight, window condition, energy cost, shade, summer comfort, and the route to care during rain or a cooler spell.
Leiria may fit a retiree who wants moderate temperatures and a long outdoor season, provided the home handles humidity, rain, heating, ventilation, and the January edge. Compare the indoor experience across seasons, then use Save, Compare, or Find my fit.
Sources
Climate comfort helps estimate how practical daily life may feel across the year, especially for heat, humidity, cold, and seasonal constraints.
Seasonal timing, health conditions, air conditioning, air quality, and elevation can change the lived experience.
- NASA POWER
Used for Overall Comfort, Summer Feel, Average Summer High, Days Above 90°F, Winter Feel, Average Winter Low, Days Below Freezing, Humidity, Comfortable Months, Solar Exposure, Best Months, Toughest Months, Allergy Levels, Heat Risk
- Open-Meteo Air Quality + Humidity Heuristic
Used for Air Quality, Long-Term Fine-Particle Pollution, Weather Volatility
Checked 2026-07-10
- World Resources Institute (WRI)
Used for Drought Risk
Checked 2026-07-13
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