- Rain mm/yr
- 910
Updated July 2026 · Sources cited: whereandwhen.net, en.climate-data.org
Good to know
Good to Know
- September and October offer the best balance of warm, stable weather and optimal surf conditions without peak summer crowds
- Summer lacks extreme heat due to the Atlantic Ocean's cooling influence; however, intense sun exposure is common even in mild temperatures
- Winter weather is highly variable—prepare for any condition including cold breezes, sudden rain, and humid fog; some restaurants may close for holidays
- Water temperature ranges from 13.7°C (56.6°F) in February to 18.5°C (65.3°F) in September; wetsuits recommended year-round for swimming
- Morning fog (June Gloom) is common in June but typically clears by noon
- November marks the transition to storm season with dramatic increases in wave size and wind; December provides holiday festivities with festive decorations and markets
Best Months
Warm and stable weather with minimal rainfall
Months
- May
- June
- July
- August
- September
- October
- Characteristics
- Ideal period with warm weather, reliable waves, and predictable conditions
Months
- September
- October
Worst Months
- Characteristics
- Cold, wet with unpredictable weather; stormy conditions common from November onward
Months
- November
- December
- January
- February
- March
Rainfall
- Summer Pattern
- Almost no rain June to September
- Annual Total Mm
- 910
- Annual Total Inches
- 35.7
Driest Months
- July
- August
- September
Wettest Months
- November
- December
- January
Snowfall
- Note
- No significant snowfall reported; coastal Atlantic influence maintains mild winters
Peak Season
- Characteristics
- Hottest months with tourist crowds peaking in July and August
Months
- June
- July
- August
Temperature
Winter Low
- Month
- January
- Avg Celsius
- 11.8
- Avg Fahrenheit
- 53.2
Summer Peak
- Month
- August
- Avg Celsius
- 20.1
- Avg Fahrenheit
- 68.1
Off Peak Range
- Avg Celsius
- 11-15°C (52–59°F)
- Avg Fahrenheit
- 11-15°C (52–59°F)
- Characteristics
- Can drop to 5-10°C (41–50°F) in coldest days; mild overall compared to continental Europe
- Description
- November to March
Peak Season Range
- Avg Celsius
- 17-20°C (63–68°F)
- Avg Fahrenheit
- 17-20°C (63–68°F)
- Characteristics
- Warm but moderated by Atlantic Ocean; rarely extremely hot
- Description
- May to October
Seasonal Notes
- Autumn
- Best overall season; warm weather until late October; increasing wind and waves from November; water temperature still warm through September
- Spring
- Mild warming temperatures 16-22°C (61–72°F); variable conditions (sun to rain); good hiking conditions; decent waves for all ability levels; fewer crowds than summer
- Summer
- Warm and dry; occasional morning fog in June; wind common in afternoons, July and August; smallest waves suitable for beginners
- Winter
- Unpredictable weather with cold spells, wind, and rain; some sunny days possible; temperatures range 5-15°C (41–59°F); big waves attract surfers; Atlantic storms can bring impressive swell
Off Peak Season
- Characteristics
- Lower tourism, fewer visitors, cooler temperatures
Months
- November
- December
- January
- February
- March
Wind Characteristics
Windy year-round; northern wind common and can make conditions colder than actual temperature; generally stronger October to March
AI-generated estimateData refreshed July 2026
Sources cited for this category
These are the sources cited in this climate & weather research for this city. Individual figures may not each trace to one of them.
More About Ericeira
Data last updated July 2026 · Verify anything important.