Vs > San Juan
 | Shannon vs San Juan Climate & Distance Between |  |
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- The distance between Shannon, Ireland and San Juan, Puerto Rico is approximately 6,190 km or 3,847 mi.
- To reach Shannon in this distance one would set out from San Juan bearing 38° or NE
 and follow the great circles arc to approach Shannon bearing 74.7° or ENE .
- Shannon has a marine west coast climate (Cfb) whereas San Juan has a tropical monsoonal climate (Am).
- Shannon is in or near the cool temperate moist forest biome whereas San Juan is in or near the subtropical moist forest biome.
- The average temperature is 15.5 °C (27.9°F) cooler.
- Average monthly temperatures vary by 6.5 °C (11.7°F) more in Shannon. The continentality subtype is barely hyperoceanic as opposed to truly hyperoceanic.
- Total annual precipitation averages 701 mm (27.6 in) less which is equivalent to 701 l/m² (17.2 US gal/ft²) or 7,010,000 l/ha (749,416 US gal/ac) less. About 4/7 as much.
- There are 1443 fewer hours of sunlight per year in Shannon. In whichever way circa 3h 57' less per day or about 1/2 as many.
- The altitude of the sun at midday is overall 32.7° lower in Shannon than in San Juan.
- Relative humidity levels are 9.6% higher.
- The mean dew point temperature is 13.3°C (24°F) lower.
Climate Comparison Table
The table shows values for Shannon relative to San Juan. You can also view this comparison the other way around from the perspective of San Juan vs Shannon.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
-19 (-34) |
-20 (-35) |
-18 (-32) |
-16 (-29) |
-15 (-26) |
-13 (-24) |
-12 (-21) |
-12 (-21) |
-14 (-25) |
-17 (-30) |
-20 (-35) |
-19 (-34) |
|
-16 (-29) |
 | Average Temperature °C ( °F) |
-18 (-32) |
-18 (-32) |
-17 (-31) |
-16 (-29) |
-15 (-27) |
-13 (-24) |
-12 (-21) |
-12 (-21) |
-14 (-24) |
-16 (-29) |
-18 (-33) |
-18 (-32) |
|
-16 (-28) |
 | Average Min Temperature °C ( °F) |
-17 (-31) |
-16 (-29) |
-16 (-30) |
-16 (-29) |
-15 (-26) |
-13 (-23) |
-11 (-20) |
-11 (-20) |
-13 (-23) |
-15 (-27) |
-18 (-32) |
-17 (-31) |
|
-15 (-27) |
 | Average Precipitation mm (in) |
-21 (-1) |
+0 (+0) |
+15 (+1) |
-38 (-1) |
-121 (-5) |
-81 (-3) |
-102 (-4) |
-99 (-4) |
-90 (-4) |
-55 (-2) |
-70 (-3) |
-39 (-2) |
|
-701 (-28) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
+3 (+10) |
+3 (+11) |
+5 (+16) |
+2 (+7) |
-4 ( -13) |
-2 ( -7) |
-2 ( -6) |
0 ( 0) |
+1 (+3) |
+1 (+3) |
+1 (+3) |
+5 (+16) |
|
+13 (+4) |
 | Average Sunlight Hours/ Day |
-5h 32' |
-5h 05' |
-5h 25' |
-3h 24' |
-1h 19' |
-1h 30' |
-3h 29' |
-3h 27' |
-3h 24' |
-4h 44' |
-4h 56' |
-5h 07' |
|
-3h 57' |
 | Average Daylight Hours & Minutes/ Day |
-3h 02' |
-1h 50' |
-0h 19' |
+1h 15' |
+2h 40' |
+3h 26' |
+3h 05' |
+1h 50' |
+0h 17' |
-1h 18' |
-2h 42' |
-3h 26' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
-34.2 |
-34.2 |
-34.3 |
-34.4 |
-30.5 |
-24.3 |
-29.8 |
-34.2 |
-34.1 |
-34 |
-34.1 |
-34.2 |
| -32.7 |
 | Relative Humidity (%) |
+16 |
+16 |
+14 |
+7 |
+2 |
+2 |
+4 |
+7 |
+8 |
+11 |
+13 |
+15 |
|
+9.6 |
 | Average Dew Point Temperature °C & (°F) |
-14.7 (-26) |
-14.6 (-26) |
-13.9 (-25) |
-14.5 (-26) |
-14 (-25) |
-12.3 (-22) |
-10.4 (-19) |
-10 (-18) |
-11.6 (-21) |
-13.4 (-24) |
-15.7 (-28) |
-14.8 (-27) |
|
-13.3 (-24) |
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Shannon vs San Juan Discussion
You are welcome to incorporate your thoughts on the differences in climate or other matters such as contrasts in culture, standard of living, demographics etc.
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