Climate Chart of Dublin, Ireland

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

For Dublin, Ireland, the climate data cover 2013–2023. The monthly mean temperature ranges from January at 5.8 °C to July at 16.5 °C, giving a broad sense of the year's temperature range without describing daytime highs. The rainfall figures are daily averages, while the sunshine figures describe mean daily duration. Recorded snowfall is also included, though these averages alone cannot establish how often snow falls or whether it settles.

Climate overview

Temperature

The coolest monthly mean is 5.8 °C in January, while the warmest is 16.5 °C in July. These are averages for whole months, not daytime maximum temperatures, so they should not be read as a forecast of conditions on a particular day. Across the calendar-month means, the unweighted mean temperature is 10.6 °C. It provides a broad summary, rather than a day-weighted annual average or a description of daily variability.

Rain

Mean daily rainfall reaches its highest monthly average in October at 3.08 mm/day, and its lowest in April at 1.78 mm/day. Those months can help distinguish periods by average daily amount, but neither figure tells you how frequently rain occurs or guarantees the conditions on a given day. The unweighted mean of the monthly daily-rainfall averages is 2.40 mm/day. These are daily means, not monthly totals, so they do not indicate the total rainfall for a month.

Sunshine

Mean daily sunshine duration is highest in June at 10.29 hours/day and lowest in December at 2.75 hours/day. The figures can inform expectations about average sunshine for outdoor plans, but sunshine duration is not the same as day length and does not guarantee clear skies on any particular date. The unweighted mean across the monthly sunshine averages is 6.80 hours/day per day. It is a summary of monthly means, not a day-weighted annual average.

Snow

The highest monthly mean daily snowfall is recorded in March at 2.05 mm/day; the unweighted mean across the monthly daily-snowfall averages is 0.31 mm/day. These amounts do not show how many days have snowfall, how deep it becomes, or whether snow cover forms, so they cannot establish snow or skiing conditions.

Best Travel Time Guide for Dublin, Ireland: Ideal Seasons and Weather Insights

For visitors prioritising lower average rainfall, April is the conditional option in the data, with mean daily rainfall of 1.78 mm/day; this does not guarantee dry days or quantify rain frequency. Prepare for rain if travelling in October, when the mean daily amount is 3.08 mm/day, and treat both figures as averages rather than daily forecasts. If cooler monthly-average conditions are the priority, January has the coolest mean at 5.8 °C. For outdoor sightseeing planned around average sunshine, June has the highest mean daily duration, 10.29 hours/day, while December has the lowest at 2.75 hours/day; these are separate criteria, not a combined best-time ranking, and sunshine duration is not day length. Snowfall averages include a highest monthly mean daily amount of 2.05 mm/day in March. This does not establish the number of snowy days, snow depth or snow cover, so use it as limited context rather than evidence of reliable winter conditions.

Climate Data Overview for Dublin, Ireland

Explore the comprehensive climate data for Dublin, Ireland. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

Month	Average: Temperature °C	Rain (mm) / day	Snow (mm) / day	Sunshine (h) / day
Jan	5.8	2.27	0.48	3.37
Feb	6.2	2.35	0.66	4.99
Mar	6.7	2.15	2.05	6.42
Apr	8.7	1.78	0.14	8.42
May	11.8	2.14	0.00	10.16
Jun	14.7	2.23	0.00	10.29
Jul	16.5	2.23	0.00	9.57
Aug	15.7	2.50	0.00	8.71
Sep	14.1	2.48	0.00	7.40
Oct	11.6	3.08	0.00	5.47
Nov	8.2	2.80	0.00	4.11
Dec	6.9	2.82	0.38	2.75
Average	10.6	2.40	0.31	6.80