Illon mountain range · Navarre · SpainSummit weather, forecast and climate

Illon

1,283 m

Elevation1,283 mabove sea level

Prominence–independent height

Isolation5.1 kmto a higher summit

Summit, Jul25°average high

42.69° N, 1.12° WElevation 1,283 mUTC+2 · Central European Summer Time

From the valley to the top

Freezing level in October: above the summit

iThe mountain

Illon in brief

Illon rises to 1,283 m in the Illon mountain range, Navarre, Spain.

At the summit, July is the mildest month with average highs of 25°, while nights fall below freezing in 3 months of the year.

The nearest town is Castillonuevo, 7.3 km to the E at 802 m.

iiForecast

Temperatures are adjusted to each height; summits are usually colder and windier than the valley forecast suggests.

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iiiSummit climate

Climate normals for the summit area (~1 km grid), station-adjusted

Climate normals for Illon by month
Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Average high	7°	7°	11°	13°	17°	22°	25°	25°	21°	16°	10°	7°
Average low	-1°	-1°	1°	3°	6°	9°	11°	12°	9°	6°	2°	0°
Precipitation	122 mm	111 mm	101 mm	150 mm	119 mm	82 mm	56 mm	62 mm	99 mm	150 mm	152 mm	164 mm
Cloud cover	49%	45%	44%	47%	43%	33%	25%	26%	33%	42%	48%	51%
Daylight	9h 23	10h 33	11h 53	13h 22	14h 37	15h 18	15h 01	13h 57	12h 32	11h 06	9h 47	9h 04
Month score	17	21	30	35	57	76	84	83	72	50	18	16

Average height of the 0 °C level from the summit normals (6.5 °C per km); snow months have a summit mean at or below +1 °C

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Freezing level	1,700 m	1,750 m	2,200 m	2,550 m	3,050 m	3,700 m	4,100 m	4,100 m	3,550 m	3,000 m	2,200 m	1,850 m
Summit	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C	above 0 °C

ivTerrain

vNeighbours

Mountain	Elevation	Prominence	Distance	July summit high
Peñablanca	1,583 m	–	22 km NE	19°
Larratza	1,582 m	–	24 km NE	20°
Txorrotxarria	1,517 m	–	21 km NE	19°
Puntabarrena	1,494 m	–	22 km NE	21°
Belbún	1,423 m	–	6.4 km E	24°
Saitsederra	1,418 m	–	24 km NE	21°
Borrokoxko	1,389 m	–	19 km N	21°
Maitza	1,377 m	–	23 km NW	21°