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Marathon Eryri (Snowdonia Marathon)

Llanberis, UK, England

Partly cloudy throughout the day.

partly-cloudy-night
8
Light Rain
35%
cloudy
8
Details
partly-cloudy-day
8
cloudy
8
cloudy
8
partly-cloudy-day
8
Light Rain
21%
cloudy
8
partly-cloudy-day
8
partly-cloudy-day
8
Light Rain
21%
partly-cloudy-day
8
Light Rain
21%
partly-cloudy-night
8
partly-cloudy-night
8
Pre-Race
Race
Post-Race
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Race Overview

The inaugural Snowdonia Marathon was held in 1982, and was conceived as a dramatic alternative to the numerous city and town races becoming so popular. The demanding and spectacular route, encircling Snowdon, Wales’ and England’s highest peak, has given the event a unique place in the annual marathon calendar ever since.
Wikipedia

FAQ

When is the 2027 Marathon Eryri (Snowdonia Marathon)?

The 2027 Marathon Eryri (Snowdonia Marathon) will be held on Saturday October 30, 2027.

Marathon Eryri (Snowdonia Marathon) Course Map

Loading Course Map...

Marathon Eryri (Snowdonia Marathon) Weather History

Marathon Eryri (Snowdonia Marathon) Weather Averages

Average Temp: 50°, Average Low: 47°, Average High: 54°
Time11AM12PM1PM2PM3PM4PM5PM
Temp
51°
51°
52°
52°
52°
52°
52°
Feel48°49°51°51°51°51°50°
Rain-------
Wind20mph
19mph
20mph
20mph
22mph
21mph
21mph
Dew46°46°46°46°46°46°46°
RunScoreRun Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 7Run Score: 8

Marathon Eryri (Snowdonia Marathon) 2025

Oct 25, 2025
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 48°, High: 54°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
rain 49°
cloudy 50°
partly-cloudy-day 51°
cloudy 51°
rain 51°
partly-cloudy-day 51°
cloudy 48°
Feel42°43°51°51°51°51°43°
Rainlightlightlightlightlightlightlight
Wind25mph
21mph
25mph
21mph
23mph
19mph
12mph
Dew37°36°36°36°39°41°43°
RunScoreRun Score: 5Run Score: 5Run Score: 6Run Score: 6Run Score: 5Run Score: 6Run Score: 7

Marathon Eryri (Snowdonia Marathon) 2024

Oct 26, 2024
Becoming cloudy in the afternoon with rain.
Low: 39°, High: 55°, Moderate Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
rain 51°
partly-cloudy-day 54°
clear-day 55°
partly-cloudy-day 55°
cloudy 55°
cloudy 55°
cloudy 54°
Feel51°54°55°55°55°55°54°
Rainlight------
Wind15mph
18mph
22mph
20mph
20mph
21mph
16mph
Dew48°48°47°48°48°49°49°
RunScoreRun Score: 7Run Score: 6Run Score: 6Run Score: 6Run Score: 6Run Score: 6Run Score: 7

Marathon Eryri (Snowdonia Marathon) 2023

Oct 28, 2023
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 49°, High: 54°, Moderate Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 53°
partly-cloudy-day 53°
rain 54°
rain 54°
rain 53°
partly-cloudy-day 54°
clear-day 53°
Feel53°53°54°54°53°54°53°
Rain--lightlightlight--
Wind12mph
12mph
11mph
11mph
12mph
6mph
7mph
Dew48°48°49°49°49°47°46°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 6Run Score: 6Run Score: 9Run Score: 9

Marathon Eryri (Snowdonia Marathon) 2022

Oct 29, 2022
Partly cloudy throughout the day with rain.
Low: 52°, High: 63°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
rain 59°
rain 59°
rain 60°
cloudy 61°
cloudy 63°
rain 61°
rain 61°
Feel59°59°60°61°63°61°61°
Rainlightlightlight--lightlight
Wind10mph
11mph
10mph
11mph
22mph
22mph
28mph
Dew55°56°57°58°56°58°56°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 6Run Score: 4Run Score: 5

Marathon Eryri (Snowdonia Marathon) 2019

Oct 26, 2019
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 42°, High: 47°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 42°
partly-cloudy-day 43°
rain 45°
partly-cloudy-day 46°
partly-cloudy-day 47°
partly-cloudy-day 46°
clear-day 45°
Feel39°39°44°42°42°41°41°
Rain--moderate----
Wind4mph
8mph
3mph
8mph
9mph
10mph
10mph
Dew41°40°41°40°38°35°34°
RunScoreRun Score: 8Run Score: 8Run Score: 5Run Score: 8Run Score: 8Run Score: 8Run Score: 8

Marathon Eryri (Snowdonia Marathon) 2018

Oct 27, 2018
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 40°, High: 43°, Moderate Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 43°
partly-cloudy-day 43°
rain 43°
partly-cloudy-day 43°
partly-cloudy-day 43°
partly-cloudy-day 43°
partly-cloudy-day 42°
Feel34°33°35°34°35°35°35°
Rain--light----
Wind21mph
22mph
20mph
20mph
20mph
17mph
15mph
Dew32°31°32°31°31°31°31°
RunScoreRun Score: 4Run Score: 4Run Score: 4Run Score: 4Run Score: 4Run Score: 5Run Score: 6

Marathon Eryri (Snowdonia Marathon) 2017

Oct 28, 2017
Partly cloudy throughout the day with afternoon rain.
Low: 49°, High: 55°, Light Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
cloudy 54°
cloudy 54°
rain 55°
partly-cloudy-day 55°
cloudy 55°
cloudy 54°
cloudy 55°
Feel54°54°55°55°55°54°55°
Rain--light----
Wind18mph
20mph
15mph
17mph
19mph
20mph
23mph
Dew53°52°52°53°53°53°53°
RunScoreRun Score: 6Run Score: 6Run Score: 7Run Score: 7Run Score: 6Run Score: 6Run Score: 6

Marathon Eryri (Snowdonia Marathon) 2016

Oct 29, 2016
Cloudy skies throughout the day with afternoon rain.
Low: 51°, High: 55°, Light Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
cloudy 53°
partly-cloudy-day 53°
rain 54°
cloudy 54°
cloudy 53°
cloudy 54°
cloudy 53°
Feel53°53°54°54°53°54°53°
Rain--light----
Wind10mph
10mph
10mph
10mph
10mph
11mph
10mph
Dew53°53°53°52°52°51°50°
RunScoreRun Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8

Marathon Eryri (Snowdonia Marathon) 2015

Oct 24, 2015
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 46°, High: 54°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 48°
partly-cloudy-day 48°
rain 48°
partly-cloudy-day 49°
partly-cloudy-day 50°
partly-cloudy-day 50°
partly-cloudy-day 49°
Feel44°44°43°43°50°50°43°
Rain--heavy----
Wind9mph
8mph
11mph
15mph
17mph
16mph
15mph
Dew44°46°45°44°43°42°41°
RunScoreRun Score: 8Run Score: 8Run Score: 5Run Score: 7Run Score: 6Run Score: 7Run Score: 6

Marathon Eryri (Snowdonia Marathon) 2014

Oct 25, 2014
Partly cloudy throughout the day with rain in the morning and afternoon.
Low: 50°, High: 55°, Light Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 53°
partly-cloudy-day 54°
rain 54°
partly-cloudy-day 55°
partly-cloudy-day 55°
partly-cloudy-day 54°
partly-cloudy-day 54°
Feel53°54°54°55°55°54°54°
Rain--light----
Wind25mph
25mph
24mph
24mph
28mph
25mph
26mph
Dew48°48°49°49°48°48°47°
RunScoreRun Score: 6Run Score: 6Run Score: 4Run Score: 6Run Score: 7Run Score: 6Run Score: 6

Marathon Eryri (Snowdonia Marathon) 2013

Oct 26, 2013
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 52°, High: 56°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
cloudy 54°
partly-cloudy-day 55°
rain 55°
wind 55°
wind 56°
wind 56°
wind 54°
Feel54°55°55°55°56°56°54°
Rain--light----
Wind23mph
23mph
29mph
33mph
35mph
39mph
39mph
Dew49°50°49°49°49°48°51°
RunScoreRun Score: 6Run Score: 6Run Score: 7Run Score: 10Run Score: 10Run Score: 10Run Score: 10

Marathon Eryri (Snowdonia Marathon) 2012

Oct 27, 2012
Partly cloudy throughout the day with morning rain.
Low: 37°, High: 45°, Light Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 43°
partly-cloudy-day 44°
partly-cloudy-day 45°
partly-cloudy-day 45°
partly-cloudy-day 45°
partly-cloudy-day 45°
partly-cloudy-day 44°
Feel37°38°40°40°41°41°40°
Rain-------
Wind11mph
12mph
9mph
10mph
8mph
8mph
6mph
Dew30°31°32°32°32°31°31°
RunScoreRun Score: 7Run Score: 7Run Score: 8Run Score: 8Run Score: 8Run Score: 8Run Score: 8

Marathon Eryri (Snowdonia Marathon) 2011

Oct 29, 2011
Partly cloudy throughout the day with rain.
Low: 49°, High: 57°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
cloudy 51°
cloudy 52°
rain 53°
cloudy 53°
wind 55°
partly-cloudy-day 55°
wind 57°
Feel51°52°53°53°55°55°57°
Rain--light----
Wind26mph
28mph
27mph
28mph
30mph
28mph
32mph
Dew49°50°51°52°53°54°54°
RunScoreRun Score: 6Run Score: 7Run Score: 4Run Score: 7Run Score: 8Run Score: 7Run Score: 10

Marathon Eryri (Snowdonia Marathon) 2010

Oct 30, 2010
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 44°, High: 52°, Moderate Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
partly-cloudy-day 48°
partly-cloudy-day 49°
rain 51°
partly-cloudy-day 52°
partly-cloudy-day 52°
partly-cloudy-day 50°
partly-cloudy-day 50°
Feel42°45°51°52°52°50°50°
Rain--light----
Wind18mph
11mph
23mph
20mph
18mph
12mph
14mph
Dew45°46°46°46°46°47°45°
RunScoreRun Score: 6Run Score: 8Run Score: 4Run Score: 6Run Score: 6Run Score: 8Run Score: 7

Marathon Eryri (Snowdonia Marathon) 2009

Oct 24, 2009
Partly cloudy throughout the day with rain.
Low: 52°, High: 59°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
wind 59°
wind 58°
rain 58°
wind 57°
wind 56°
wind 55°
wind 55°
Feel59°58°58°57°56°55°55°
Rain--moderate----
Wind39mph
32mph
39mph
37mph
40mph
41mph
38mph
Dew58°56°55°54°54°53°54°
RunScoreRun Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10

Marathon Eryri (Snowdonia Marathon) 2008

Oct 25, 2008
Partly cloudy throughout the day with rain.
Low: 49°, High: 56°, Heavy Rain
Time11AM12PM1PM2PM3PM4PM5PM
Temp
wind 50°
wind 50°
rain 51°
wind 51°
wind 52°
wind 52°
wind 52°
Feel40°50°51°51°52°52°52°
Rain--moderate----
Wind48mph
46mph
40mph
40mph
41mph
42mph
40mph
Dew45°47°48°48°50°50°51°
RunScoreRun Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10Run Score: 10