Climate Overview
The climate in Roncesvalles is temperate. The average annual temperature is 14°C and approximately 3076mm of precipitation falls per year. Roncesvalles receives a notable amount of rainfall throughout the year, including during its driest month. Roncesvalles sits near the equator, so seasonal temperature differences are minimal throughout the year.
Temperature
Roncesvalles has relatively stable temperatures year-round, staying within a 9°C range. September is the warmest month, though highs remain moderate at 19°C with a mean of 15°C. January is the coolest month, with minimum temperatures around 10°C and an average of 14°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.
Precipitation
Roncesvalles is a very wet location, receiving approximately 3076mm of precipitation annually, which averages out to around 256mm per month. The wettest month is March, averaging 480mm of rainfall. November and April also tend to see above-average precipitation. The driest month is August, with just 95mm. That's 385mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Roncesvalles is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 8km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 6km/h in winter, 6km/h in spring, 8km/h in summer, 6km/h in autumn.
Seasons
88 days until Summer
It is currently spring in Roncesvalles, which began on March 20, 2026. Roncesvalles sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in September at around 19°C, while the coldest stretch bottoms out in January near 10°C. Summer is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 11 to 19°C. Rainfall is heavy, totalling around 1053mm across the season with a monthly average of 351mm. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 10 to 19°C. Rainfall is heavy, totalling around 381mm across the season with a monthly average of 127mm. Winds are generally light, averaging 8km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 10 to 19°C. Rainfall is heavy, totalling around 854mm across the season with a monthly average of 285mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 10 to 19°C. Rainfall is heavy, totalling around 787mm across the season with a monthly average of 262mm. Winds are generally light, averaging 6km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Monthly Climate Data
The table below shows monthly climate averages for Roncesvalles based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
