Alicante weather, month by month
In January, when Dublin gets to about 8°C, Alicante reaches 17°C. Warm, dry days, 24°C and over with little rain, come from May to August. The sea is warm enough for a comfortable swim from June to October.
Every month
| Month | Daytime high | Night-time low | Sea | Rain a month | Dublin, for comparison |
|---|---|---|---|---|---|
| January | 17°C | 6°C | 15°C | 23mm | 8°C |
| February | 18°C | 7°C | 14°C | 22mm | 9°C |
| March | 20°C | 9°C | 15°C | 23mm | 10°C |
| April | 21°C | 11°C | 16°C | 29mm | 12°C |
| May | 24°C | 14°C | 19°C | 28mm | 15°C |
| June | 28°C | 18°C | 22°C | 12mm | 18°C |
| July | 30°C | 21°C | 25°C | 4mm | 20°C |
| August | 31°C | 21°C | 26°C | 7mm | 19°C |
| September | 29°C | 19°C | 25°C | 56mm | 17°C |
| October | 25°C | 15°C | 22°C | 47mm | 14°C |
| November | 21°C | 10°C | 19°C | 36mm | 10°C |
| December | 18°C | 7°C | 16°C | 25mm | 8°C |
Measured at Alacant/Alicante, averaged over 1991 to 2020. Somewhere inland or up a mountain will differ.
Questions
What is the warmest month in Alicante?
August, with daytime highs around 31°C and nights around 21°C. The sea is warmest in August, at about 26°C.
Is Alicante warm in winter?
In January, the coolest month, daytime highs are around 17°C and nights drop to about 6°C. That is 9 degrees warmer than Dublin in the same month.
When is the sea warm enough to swim in Alicante?
The sea is 21°C or warmer from June to October. It is at its coolest in February, around 14°C.
When does it rain most in Alicante?
September, with about 56mm on average. Dublin gets about 63mm in September.
Averages for 1991 to 2020. Temperature and rainfall from Met Éireann, AEMET and IPMA. Sea temperature generated using Copernicus Climate Change Service information 2026, adapted, CC BY 4.0.
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