Weather in Eilean Siar

Calculated from weather data of Benbecula Airport (EGPL) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	7.6	7.5	7.7	8.9	5.5	8.9
February	7.8	8.1	9.3	7.7	6.7	7.4
March	8.5	9.0	7.7	9.5	8.6	7.7
April	10.8		11.1	10.9	9.6	10.9
May	13.2		13.5	13.1	11.9	13.3
June	15.4		18.1	15.0	14.5	15.0
July	16.3		16.6	15.8	17.3	14.9
August	16.3		16.8	16.3	16.6	16.8
September	14.9		15.8	15.8	15.5	14.4
October	12.1		12.4	12.9	12.5	11.5
November	9.7		9.3	11.0	10.4	10.5
December	7.8		8.0	6.5	8.1	7.7
Average	11.3	8.2	12.2	12.1	11.5	11.6

86th highest temperature of United Kingdom

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	3.7	3	4	6	1	6
February	3.8	4	5	4	3	3
March	3.8	4	3	5	5	4
April	5.1		5	5	3	5
May	7.6		9	9	6	8
June	10.5		12	11	10	11
July	11.6		11	12	13	11
August	11.7		12	12	12	11
September	10.4		11	11	11	10
October	8.2		9	9	9	7
November	5.6		4	7	7	7
December	4.2		4	3	5	4
Average	6.8	3.5	7.4	7.9	6.9	7.1

60th lowest temperature of United Kingdom

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	0	0	0	0	0
25 °C or warmer	0	0	0	0	0
20 °C or warmer	0	14	1	3	4
0 °C or colder	13	18	3	18	6

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	23.1	21	25	27	22	36
February	21.9	25	22	20	20	27
March	17.5	9	18	13	22	23
April	11.5		14	18	8	6
May	12.9		7	16	14	11
June	13.8		12	21	13	13
July	12.9		13	11	7	15
August	13.9		12	12	8	8
September	18.6		18	14	17	22
October	22.2		15	22	32	21
November	21.8		18	25	27	19
December	24.9		28	16	24	24
Average	16.7	17.3	15.2	17.0	15.9	16.8

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	28.5	30	27	33	21	38
February	32.0	26	30	38	38	41
March	27.1	27	22	28	28	29
April	24.3		25	23	22	21
May	23.3		22	27	22	24
June	22.5		18	26	24	21
July	20.9		22	23	14	23
August	22.0		23	24	16	20
September	25.6		26	24	22	27
October	29.1		31	31	27	25
November	26.2		20	28	31	29
December	25.3		29	22	22	28
Average	25.2	27.6	23.9	26.7	22.7	25.8

1st highest wind speed of United Kingdom

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SW	SW	SW	N	SW
February	SW	SW	W	S	SW
March	SE	SE	S	SW	SW
April		SE	SE	NW	SW
May		SW	SW	NE	SW
June		S	S	SW	N
July		NW	SW	NW	W
August		SW	SW	NE	SE
September		SW	W	S	SW
October		SE	SW	SW	NW
November		NE	S	W	SW
December		SW	E	S	SW

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Eilean Siar weather Q&A

What is the warmest month in Eilean Siar?

The warmest month is July with an average temperature of 16 °C over the past years.

What is the coldest month in Eilean Siar?

The coldest month is January with an average daytime temperature of 8 °C in the past few years.

Which month is the wettest in Eilean Siar?

Chance of precipitation is the highest in December with a probability of around 24.9 %.

Which month is the driest in Eilean Siar?

The least rainfall and snow can be expected in April. The probability is about 11.5 %.