July Weather in Portmarnock, Ireland

Last updated: March 17, 2025

In Portmarnock, Ireland, July presents a delightful blend of warm and refreshing weather, making it a popular month for outdoor activities. With maximum temperatures reaching 27°C (80°F) and an average of 16°C (62°F), residents and visitors can bask in the summer warmth. However, they should be prepared for a cooler dip, as minimum temperatures can drop to 8°C (47°F). July also brings 73 mm (2.9 in) of precipitation over approximately 12 days, resulting in an humidity level of 86%, which adds a touch of moisture to the air. This combination creates a unique charm, inviting both exploration and relaxation amid the lush Irish landscapes.

July Temperature in Portmarnock

In July, Portmarnock, Ireland, embraces the warmth of summer, showcasing delightful temperatures that set it apart from the cooler months. With minimums around 8°C (47°F) and averages reaching 16°C (62°F), residents and visitors alike can enjoy the outdoors in pleasantly mild weather. The month peaks with maximums of 27°C (80°F), making it the hottest time of the year. This significant rise in temperatures compared to earlier months highlights a clear trend towards warmth, as July stands out with its inviting climate—ideal for leisurely strolls along the beach or enjoying the vibrant local culture. As summer unfolds, Portmarnock’s temperatures create a welcoming canvas for those seeking sun-soaked days against the backdrop of its stunning coastline.

July Weather in Portmarnock: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Portmarnock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434445485358616157524745
Data source: Temperature data for Portmarnock generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Portmarnock

July in Portmarnock brings a notable shift in precipitation, mirroring the patterns established in previous months. With 73 mm (2.9 in) of rain falling over 12 days, July maintains the same precipitation level as March and February, indicating a consistent, albeit wet, summer. Despite being one of the driest months of the season, July's rainfall continues the trend of increased moisture, setting the stage for the even wetter conditions anticipated in August, which averages 95 mm (3.7 in) over 16 days. This gradual rise in precipitation, particularly noted from late spring into summer, reflects the region's characteristic temperate maritime climate, where rain is a familiar companion throughout the year.

July Precipitation Trends in Portmarnock

The chart displays monthly precipitation patterns in Portmarnock, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec537373446269739570799385
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Portmarnock

In Portmarnock, Ireland, July experiences a humidity level of 86%, maintaining a consistent trend observed throughout the earlier months. This relatively high humidity aligns closely with the figures from February to June, showcasing minimal fluctuation. Interestingly, while July remains on par with March and September in terms of humidity, it also hints at a slight peak occurring in the summer months. As the year progresses, humidity tends to stabilize around the 85-87% range, creating a lush, verdant atmosphere typical of this coastal region. This consistency not only highlights the unique climate of Portmarnock but also sets the stage for the temperate days that characterize its inviting summers.

July Average Humidity in Portmarnock

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

July UV Index in Portmarnock

In Portmarnock, Ireland, July marks the peak of sun exposure, with a UV Index of 8, categorized as very high. This level of UV radiation underscores the importance of sun safety, as the recommended burn time drops to just 15 minutes. Following a gradual increase from January's low UV Index of 1, the summer months showcase a significant rise in sun intensity, highlighting May and June as transitional periods where sun safety becomes increasingly crucial. As the summer peaks in July, sun-seekers should be particularly vigilant to protect their skin. For more detailed information on UV levels throughout the year, visit Portmarnock UV Index.

Maximum UV Index Levels in Portmarnock for July

The chart shows the monthly maximum UV Index (UVI) for Portmarnock in July, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Portmarnock July 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.

July Sunshine in Portmarnock

In July, Portmarnock basks in the warmth of summer, enjoying 377 hours of glorious sunshine. This delightfully bright month follows a steady ascent from the 80 hours logged in January, showcasing the gradual transition from winter to the vibrant summer season. The sunshine peaks in late spring, with 385 hours in May, marking the height of brightness just before July. Despite a slight decrease from June's 379 hours, the sun still generously graces Portmarnock, contributing to its picturesque landscapes and inviting outdoor activities. As summer unfolds, the hours of sunshine begin to dwindle in August, hinting at the approaching autumn, yet the memories created under the July sun linger warmly throughout the year.

Monthly Sunshine Duration in Portmarnock: July Highlighted

The July sunshine duration represents the total number of hours Portmarnock experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec80h145h190h308h385h379h377h329h288h226h114h91h
Data source: Portmarnock July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Portmarnock During July

In Portmarnock, Ireland, July presents a 30% chance of sunny weather, which is a slight increase from the previous months, yet still modest compared to the more promising conditions of April at 44%. As the year progresses, the likelihood of sun seems to fluctuate, peaking in spring and dipping in late summer. The transition from June's 23% to July’s figures indicates a brief resurgence in sunny days, but overall, summer in Portmarnock remains unpredictable. This trend underscores July as a month where sunshine is possible, but residents and visitors alike should remain prepared for the frequent overcast that characterizes Irish summer weather.

Percentage of Sunny Days in July in Portmarnock

The chart illustrates the percentage of sunny days in Portmarnock throughout the year, with July 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 Portmarnock experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%21%22%44%33%23%30%23%21%20%26%23%
Data source: Portmarnock July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Portmarnock in July

In Portmarnock, Ireland, July shines brightly with a remarkable 16 hours of daylight, maintaining the peak that begins in June. This seasonal abundance of sunlight reflects the gradual increase from just 8 hours in January, as the days slowly stretch through spring, culminating in the long, luminous days of summer. As July gives way to August, daylight hours begin to taper off, dropping to 14 hours. This trend illustrates the natural rhythm of the seasons in Portmarnock, where each month's daylight duration invites residents and visitors alike to embrace the beauty of the changing landscape. With daylight gradually decreasing in the subsequent months, July stands out as a vibrant highlight for outdoor activities and sun-filled adventures.

Average Daylight Hours in Portmarnock for July

The chart illustrates the variation in daylight duration in Portmarnock throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 5m9h 48m11h 54m14h 3m15h 56m16h 56m16h 24m14h 42m12h 37m10h 29m8h 34m7h 31m
Data source: Portmarnock daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Portmarnock

In July in Portmarnock, Ireland, the breeze softens, with average wind speeds dropping to a gentle 2.8 m/s (6 mph). This marks a noticeable decline from the more brisk spring months, such as April and May, where winds reached around 3.5 to 3.9 m/s (8 to 9 mph). Compared to the winter months that whip in stronger currents, July offers a serene respite, creating a calm and inviting atmosphere. As summer progresses, August sees a slight uptick, bringing back winds at 3.6 m/s (8 mph), offering a subtle reminder that while summer days may be warm, the winds of change are never far behind. Overall, this tranquil July wind invites leisurely strolls along the coast, making it a perfect time to embrace the beauty of Ireland's summer charm.

Average July Wind Speed in Portmarnock

The chart displays monthly wind speed patterns in Portmarnock, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.66.04.83.53.93.72.8 m/s3.63.54.84.95.0
Data source: Portmarnock July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Portmarnock Compares to Other Months

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

July and January present a stark contrast in weather. In July, temperatures range from a cool minimum of 8°C (47°F) to a warm maximum of 27°C (80°F), with an average of 16°C (62°F). The month sees about 73 mm (2.9 in) of precipitation over approximately 12 days, coupled with high humidity at 86%. In contrast, January offers much colder conditions, with temperatures dipping as low as -3°C (27°F) and reaching a maximum of 14°C (58°F), averaging around 6°C (43°F). The total precipitation is slightly lower at 53 mm (2.1 in) across around 10 days, while humidity is similarly high at 85%. For a closer look at January weather in Portmarnock, you can visit Portmarnock weather in January.

July and February present strikingly different weather patterns. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), with an average of 16°C (62°F). The month sees about 73 mm (2.9 in) of precipitation over approximately 12 days, accompanied by relatively high humidity levels of 86%. In contrast, February experiences much cooler temperatures, with a minimum of -2°C (29°F), an average of 7°C (44°F), and a maximum of 15°C (58°F). Despite similar total precipitation of 73 mm (2.9 in), February has slightly more rainy days at 14, while also maintaining the same high humidity level of 86%. To learn more about the weather specifics in this month, check out Portmarnock weather in February.

When comparing the weather in July and March, the differences are quite striking. July features a much warmer climate, with average temperatures ranging from a low of 8°C (47°F) to a high of 27°C (80°F), while March experiences cooler temperatures, from a low of -3°C (26°F) to a high of 16°C (62°F). Both months receive the same amount of precipitation at 73 mm (2.9 in), but July has fewer rainy days, averaging 12 compared to March's 14. Interestingly, both months share a high humidity level of 86%. For a closer look at March weather specifically, visit Portmarnock weather in March.

In comparing the weather between July and April, a noticeable contrast emerges in both temperature and precipitation. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), with an average of 16°C (62°F), making it significantly warmer than April, which has a temperature range from -1°C (31°F) to 19°C (67°F) and an average of 9°C (48°F). While July experiences higher humidity at 86% and more precipitation at 73 mm (2.9 in) over 12 days, April sees less rain, totaling 44 mm (1.7 in) across 11 days, and slightly lower humidity at 85%. For more detailed insights into April weather, you can refer to Portmarnock weather in April.

July and May showcase notable differences in weather patterns. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), with an average of 16°C (62°F), while May has cooler temperatures, peaking at 22°C (72°F) and averaging 12°C (53°F). Precipitation is slightly higher in July at 73 mm (2.9 in) over 12 days, compared to May's 62 mm (2.4 in) also over 12 days, highlighting the wet nature of summer. Additionally, July sees a higher humidity level at 86%, compared to May's 83%. For more details on the climate during this month, you can visit Portmarnock weather in May.

In comparing the weather conditions between June and July, July tends to be slightly warmer with average temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), compared to June’s range of 7°C (44°F) to 25°C (77°F). The average temperature in July is also higher at 16°C (62°F) versus June's 15°C (58°F). While both months experience considerable precipitation, July sees a slight increase with 73 mm (2.9 in) over 12 days, compared to June's 69 mm (2.7 in) over 13 days. Humidity levels remain similar, with July at 86% and June at 85%. For more details, you can check Portmarnock weather in June.

In July, the weather features a comfortable range of temperatures, with a minimum of 8°C (47°F) and a maximum of 27°C (80°F), while August sees a slight dip in the maximum temperature, peaking at 23°C (74°F). The average temperature remains fairly stable between the two months, at around 16°C (62°F) in July and 16°C (61°F) in August. However, August is wetter, with a total precipitation of 95 mm (3.7 in) over 16 days compared to July's 73 mm (2.9 in) over 12 days. Humidity levels are quite similar, with July at 86% and August slightly lower at 85%. For more detailed weather insights, you can check Portmarnock weather in August.

July and September exhibit notable differences in temperature and rainfall patterns, while maintaining a similar humidity level. In July, temperatures range from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), with an average of 16°C (62°F). The month sees approximately 73 mm (2.9 in) of precipitation over 12 days. In contrast, September experiences cooler temperatures, with a minimum of 4°C (39°F), an average of 14°C (57°F), and a maximum of 22°C (72°F). The precipitation is slightly less, totaling 70 mm (2.7 in) over 13 days. Despite these changes, both months share a consistent humidity level of 86%. For more information, check out Portmarnock weather in September.

In comparing the weather between July and October, we can observe distinct differences. July typically enjoys milder temperatures with a minimum of 8°C (47°F), an average of 16°C (62°F), and a maximum of 27°C (80°F). It also has relatively higher humidity at 86% and about 73 mm (2.9 in) of rainfall over 12 days. In contrast, October experiences cooler temperatures, with a minimum of 2°C (36°F), an average of 11°C (53°F), and a maximum of 19°C (67°F). The month tends to be wetter, receiving approximately 79 mm (3.1 in) of precipitation across 13 days, along with slightly higher humidity at 87%. For more details on the weather specifics in October, you can visit Portmarnock weather in October.

In July, the weather in Portmarnock features a comfortable range with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 27°C (80°F), averaging around 16°C (62°F). The month sees about 73 mm (2.9 in) of precipitation over 12 days, but the humidity remains high at 86%, giving the air a warm and slightly muggy feel.

In contrast, November brings a significant drop in temperatures, with a minimum of -1°C (31°F) and a maximum of 15°C (60°F), averaging just 8°C (48°F). Precipitation increases slightly to 93 mm (3.6 in) occurring over 14 days, while humidity stays consistent at 86%, creating a chilly and damp atmosphere. For more detailed insights, you can check Portmarnock weather in November.

July and December exhibit stark contrasts in weather, reflecting the shift from summer to winter. In July, temperatures range from a mild 8°C (47°F) to a warm 27°C (80°F), with an average of 16°C (62°F). The month experiences 73 mm (2.9 in) of precipitation over approximately 12 days, accompanied by high humidity levels of 86%. In contrast, December sees significantly colder temperatures, with a minimum of -2°C (30°F) and a maximum of 13°C (56°F), averaging around 7°C (45°F). The precipitation increases slightly to 85 mm (3.4 in) spread over about 14 days, with humidity remaining high at 84%. For more detailed information on December weather, you can visit Portmarnock weather in December.

Compare Portmarnock's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Portmarnock

As July graces Portmarnock, the weather offers a vibrant contrast to other months, boasting warmer temperatures that peak at a delightful 27°C (80°F). With an average of 16°C (62°F), this month invites locals and visitors alike to bask in the sun while also experiencing the occasional rain, as precipitation occurs on about 12 days throughout the month. The humidity hovers around 86%, creating a warm, tropical feel that sets July apart from the typically cooler, drier months. For those planning a visit or looking to explore more about the region’s climate, don’t miss out on the detailed insights available at Portmarnock Climate.