December Weather in Rosslare, Ireland

Last updated: March 17, 2025

December in Rosslare, Ireland is characterized by a mild yet damp climate, with maximum temperatures reaching 13°C (56°F) and averages around 9°C (48°F). The month experiences a chilly minimum temperature of about 2°C (36°F). Rainfall is a notable feature, with 131 mm (5.1 in) of precipitation spread over 17 days, contributing to a humidity level of 84%. This combination of cool temperatures and frequent rain creates a quintessentially moody winter atmosphere, perfect for those seeking a cozy getaway amidst Ireland's natural beauty.

December Temperature in Rosslare

In December, Rosslare, Ireland, experiences a seasonal chill, with temperatures that reflect the onset of winter. The minimum temperature hovers around 2°C (36°F), while the average settles at a cool 9°C (48°F), peaking at a comfortable 13°C (56°F) during the day. As the year wraps up, this month marks a subtle drop compared to the previous months, with a noticeable trend towards cooler evenings and brisk days. December's climate invites cozy gatherings and festive celebrations, making it a picturesque time to enjoy the charm of this coastal town. The mild yet crisp weather is perfect for leisurely walks along the beach or savoring warm treats from local cafés, accentuating Rosslare's appeal during the winter season.

December Weather in Rosslare: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Rosslare, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464646485257606059555048
Data source: Temperature data for Rosslare generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Rosslare

December in Rosslare, Ireland, marks a significant transition in weather patterns, with precipitation levels soaring to 131 mm (5.1 in), making it one of the wettest months of the year. This uptick in rainfall is accompanied by an increase in precipitation days, totaling 17, which further underscores the advent of winter weather. Following November's already high 139 mm (5.5 in), December’s figures reinforce a trend of escalating moisture, as the cumulative rainfall from autumn to winter peaks. This consistent precipitation not only paints a rather grey picture but also nourishes the lush Irish landscape, which thrives on this late-year abundance.

December Precipitation Trends in Rosslare

The chart displays monthly precipitation patterns in Rosslare, with values for each month alongside December's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec6610388605770628984118139131
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Rosslare

In December, Rosslare, Ireland, experiences a slight dip in humidity, averaging 84%, a subtle decline from the higher levels of 86% seen in both November and the summer months. This trend mirrors the gradual seasonal shift, where humidity tends to be more stable in the colder months yet slightly lower in late fall and winter compared to the more humid summer. With January's humidity expected to rise again to 85%, December serves as a transitional month, highlighting the region's typical maritime climate characterized by consistent moisture throughout the year. Overall, while humidity remains high by many standards, December offers a small respite before the winter months fully settle in.

December Average Humidity in Rosslare

This chart illustrates the average monthly humidity levels in Rosslare, with December's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how December's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Rosslare

In December, Rosslare, Ireland experiences a low UV Index of 1, indicating minimal risk for sunburn with a burn time of 45 minutes for fair-skinned individuals. This trend reflects a notable decrease in UV exposure compared to the summer months, where values reached as high as 8 in June and July. As the year draws to a close, the UV Index regresses, mirroring the gradual dimming of sunlight during winter. It's a time when those venturing outdoors can enjoy longer periods in the sun without significant risk, but it's always wise to stay informed. For more details, check out the Rosslare UV Index.

Maximum UV Index Levels in Rosslare for December

The chart shows the monthly maximum UV Index (UVI) for Rosslare in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Rosslare December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Rosslare

In Rosslare, Ireland, the month of December may not bask in the same glow as summer months, but its 111 hours of sunshine provide a subtle charm to the winter landscape. As the year closes, daylight dwindles from the summer peak of 420 hours in July, showcasing a clear pattern of diminishing sunlight. From the bright stretch of late spring with 411 hours in May to the notable drop in the latter part of the year, December gleams with a quiet resilience. The steady decline in sunshine hours, peaking in the summer and tapering off in the colder months, highlights the distinct seasons of this coastal gem. Embracing the soft light of December, Rosslare offers a peaceful respite as it gently transitions into the new year.

Monthly Sunshine Duration in Rosslare: December Highlighted

The December sunshine duration represents the total number of hours Rosslare experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec98h155h218h325h411h412h420h371h317h251h139h111h
Data source: Rosslare December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rosslare During December

As December settles over Rosslare, Ireland, the likelihood of sunny weather dips to 25%, reflecting a trend of decreasing sunshine hours as winter approaches. Notably, this month shares similarities with the earlier winter months of January and February, which have modest sunshine chances of 31% and 25%, respectively. Interestingly, while spring months like April see a boost in sunlight to 51%, December's chilly skies typically yield less sun, showing a significant drop compared to the more vibrant late spring and summer months. Overall, December carries a sense of subdued brightness, as the landscape prepares for the winter season.

Percentage of Sunny Days in December in Rosslare

The chart illustrates the percentage of sunny days in Rosslare throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Rosslare experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec31%25%29%51%39%29%39%35%26%21%32%25%
Data source: Rosslare December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rosslare in December

In Rosslare, Ireland, the daylight duration experiences a captivating ebb and flow throughout the year. The year kicks off in January with about 8 hours of daylight, gradually increasing to 9 hours in February and reaching 11 hours by March, as the promise of spring awakens. The progression continues with April and May, basking in 13 and 15 hours respectively, before peaking at a glorious 16 hours in June and July. However, this sunny abundance begins to wane as August cools to 14 hours, giving way to the gentle descent of daylight in the autumn months. By September, daylight slips to 12 hours, and as winter settles in, November brings back those earlier 8 hours before culminating in a modest 7 hours in December. This rhythmic cycle underscores the seasonal dance of light and dark, reflecting the changing moods and activities of life in this charming coastal town.

Average Daylight Hours in Rosslare for December

The chart illustrates the variation in daylight duration in Rosslare throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 17m9h 55m11h 54m13h 57m15h 44m16h 40m16h 10m14h 34m12h 36m10h 34m8h 44m7h 46m
Data source: Rosslare daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Rosslare

As December settles in Rosslare, Ireland, the winds begin to pick up, averaging 8.0 m/s (18 mph). This increase in wind speed follows a generally ascending trend from the calmer summer months, where July recorded its lowest average at 4.3 m/s (10 mph). Notably, the months preceding December, like November, exhibit a moderate 7.0 m/s (16 mph), hinting at an energetic transition into winter. The brisk winds signal the approach of colder temperatures, making December one of the more spirited months of the year, as the coastal charm of Rosslare is complemented by the invigorating gusts that sweep through the landscape.

Average December Wind Speed in Rosslare

The chart displays monthly wind speed patterns in Rosslare, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec7.59.56.95.46.25.44.35.75.17.77.08.0 m/s
Data source: Rosslare December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Rosslare Compares to Other Months

The weather in Rosslare changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of December's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Rosslare and find detailed weather information for every month.

In comparing the weather between December and January, both months experience relatively mild temperatures, with January seeing slightly cooler averages. December's average temperature reaches 9°C (48°F) while January's averages dip to 8°C (46°F), although both months maintain a maximum of 13°C (56°F). Notably, December is characterized by significantly higher precipitation, totaling 131 mm (5.1 in) over 17 days, compared to January's 66 mm (2.6 in) over just 13 days. Humidity remains quite consistent, with December at 84% and January slightly higher at 85%. For more detailed weather information, you can check Rosslare weather in January.

December and February share similar temperature ranges, with December slightly warmer, averaging 9°C (48°F) compared to February's 8°C (46°F). Both months experience a minimum temperature of around 2°C (36°F), but December typically peaks at a maximum of 13°C (56°F), whereas February reaches a maximum of 12°C (55°F). Precipitation is more pronounced in December, with 131 mm (5.1 in) falling over 17 days, in contrast to February's 103 mm (4.1 in) over 16 days. Additionally, humidity levels remain high in both months, slightly higher in February at 86% compared to December's 84%. For more specific details, you can check Rosslare weather in February.

December and March present distinct weather characteristics. In December, temperatures range from a minimum of 2°C (36°F) to a maximum of 13°C (56°F), with an average of 9°C (48°F). The month sees significant precipitation, totaling 131 mm (5.1 in) over approximately 17 days, and humidity levels remain high at 84%. In contrast, March experiences colder conditions, with temperatures dipping to a minimum of -1°C (30°F) and reaching a maximum of 12°C (53°F), while the average temperature is slightly lower at 8°C (47°F). Precipitation is also reduced in March to 88 mm (3.5 in) across about 15 days, and humidity is slightly elevated at 86%. For more detailed insights about March weather, you can visit Rosslare weather in March.

In December, the weather is characterized by cooler temperatures, with a minimum of 2°C and an average high of 13°C. This month experiences significantly higher precipitation, totaling 131 mm over approximately 17 wet days, and maintains a high humidity level of 84%. In contrast, April offers similar temperature ranges, with minimums at 2°C and maximums around 13°C, but it sees a marked decrease in precipitation, averaging only 60 mm across just 8 rainy days and maintaining a slightly higher humidity of 85%. For more details on April weather specifically, you can check Rosslare weather in April.

In December, the weather is notably cooler with average temperatures ranging from 2°C (36°F) to a maximum of 13°C (56°F). This month experiences higher precipitation, totaling 131 mm (5.1 in) over 17 days, and maintains a humidity level of 84%. In contrast, May brings a slight warmth with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 15°C (60°F). Precipitation is significantly lower at 57 mm (2.3 in) over just 9 days, and the humidity remains relatively close at 83%. Overall, May presents a more pleasant and drier climate compared to the chilly and wet conditions of December. For more detailed information, you can check Rosslare weather in May.

December and June present contrasting weather conditions. In December, temperatures range from a chilly 2°C (36°F) at night to a mild 13°C (56°F) during the day, with an average of 9°C (48°F). The month sees significant precipitation, totaling 131 mm (5.1 in) over 17 days, complemented by high humidity at 84%. In contrast, June enjoys warmer temperatures with a minimum of 9°C (48°F) and a maximum of 19°C (66°F), averaging 14°C (57°F). Rainfall is much lighter at 70 mm (2.8 in) across 11 days, and humidity remains relatively high at 85%. For more specific details on weather patterns, check Rosslare weather in June.

When comparing the weather in December and July, the differences are quite striking. December experiences cooler temperatures, with a minimum of 2°C (36°F) and an average of 9°C (48°F), whereas July is notably warmer, with a minimum of 11°C (52°F) and an average of 15°C (60°F). Precipitation levels also differ significantly; December sees 131 mm (5.1 in) of rain over 17 days, while July has only 62 mm (2.4 in) over just 11 days. Humidity remains relatively high in both months, at 84% in December and 86% in July, but the overall feel of the weather is vastly different. For more specifics about the weather in July, you can check Rosslare weather in July.

December weather features cooler temperatures compared to August, with a minimum of 2°C (36°F) and an average of 9°C (48°F), while August enjoys milder temperatures, ranging from a minimum of 11°C (52°F) to an average of 16°C (60°F). Precipitation is higher in December, with 131 mm (5.1 in) falling over 17 days, compared to August's 89 mm (3.5 in) spread over just 11 days. Despite these differences, humidity remains relatively similar, with December at 84% and August at 85%. For a closer look at the weather specifics for August, visit Rosslare weather in August.

December weather is significantly cooler than that of September, with average temperatures ranging from 2°C (36°F) to a mild 13°C (56°F), compared to September's warmer range of 9°C (48°F) to 19°C (66°F). While both months experience a fair amount of rainfall, December sees more precipitation, totaling 131 mm (5.1 in) over 17 days, as opposed to September's 84 mm (3.3 in) over 13 days. Additionally, the humidity remains relatively high in both months, with December at 84% and September slightly higher at 86%. For a closer look at September's climate, you can check out Rosslare weather in September.

When comparing the weather in December and October, we see notable differences in temperature and precipitation. In December, the temperatures average around 9°C (48°F), with a maximum of 13°C (56°F) and a minimum of 2°C (36°F), making it generally colder than October, which enjoys milder conditions with an average of 13°C (55°F), peaking at 18°C (65°F) and a minimum of 6°C (43°F). Precipitation levels remain similar, with December experiencing slightly more at 131 mm (5.1 in) over 17 days compared to October's 118 mm (4.6 in) over 16 days. Humidity is also slightly lower in December at 84% compared to October's 87%, contributing to a more damp atmosphere as the year ends. For more details about October weather, you can visit Rosslare weather in October.

In comparing the weather patterns of December and November, December tends to be slightly cooler, with average temperatures ranging from a minimum of 2°C to a maximum of 13°C, compared to November's range of 4°C to 15°C. December also experiences notable precipitation with 131 mm over 17 days, while November sees a slightly higher total of 139 mm over 18 days. Humidity levels remain high in both months, with December at 84% and November slightly higher at 86%. For more detailed information, you can check Rosslare weather in November.

Compare Rosslare's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Rosslare

As December settles over Rosslare, the weather shifts significantly compared to the milder months preceding it. With temperatures dipping, the average hovers around 9°C (48°F), offering a crisp chill that marks the true onset of winter. Rainfall becomes more frequent and intense, as 131 mm of precipitation spreads over 17 days, creating a damp atmosphere that is characteristic of the season. Coupled with a humidity level of 84%, December presents a stark contrast to the sunnier and drier months, making warm layers and waterproof gear essential for outdoor activities. For a deeper dive into the climate nuances throughout the year, visit Rosslare Climate.