Vs > Vientiane
 | San Juan vs Vientiane Climate & Distance Between |  |
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- The distance between San Juan, Puerto Rico and Vientiane, Laos is approximately 15,781 km or 9,806 mi.
- To reach San Juan in this distance one would set out from Vientiane bearing 342.2° or NNW
 and follow the great circles arc to approach San Juan bearing 197.8° or SSW .
- San Juan has a tropical monsoonal climate (Am) whereas Vientiane has a tropical wet and dry/ savanna climate with dry winters (Aw).
- Both are in or near the subtropical moist forest biome.
- The mean annual temperature is 0.2 °C (0.4°F) cooler.
- Average monthly temperatures vary by 3.3 °C (5.9°F) less in San Juan. The continentality subtype is truly hyperoceanic for both.
- Total annual precipitation averages 20.7 mm (0.8 in) less which is equivalent to 20.7 l/m² (0.51 US gal/ft²) or 207,000 l/ha (22,130 US gal/ac) less. About 1 as much.
- There are 409 more hours of sunlight per year in San Juan. In whichever way circa 1h 06' more per day or about 1 1/6 as many.
- The altitude of the sun at midday is overall 0.3° lower in San Juan than in Vientiane.
- Relative humidity levels are 1.3% higher.
- The mean dew point temperature is 0.1°C (0.2°F) higher.
Climate Comparison Table
The table shows values for San Juan relative to Vientiane. You can also view this comparison the other way around from the perspective of Vientiane vs San Juan.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
+4 (+7) |
4 (+7) |
1 (+2) |
0 (0) |
1 (+2) |
3 (+5) |
3 (+5) |
3 (+6) |
4 (+6) |
+4 (+7) |
+6 (+11) |
+6 (+10) |
|
3 (+6) |
 | Average Temperature °C ( °F) |
+2 (+3) |
-1 (-1) |
-3 (-5) |
-4 (-6) |
-2 (-3) |
-1 (-1) |
-1 (-1) |
0 (0) |
0 (0) |
+1 (+1) |
+2 (+3) |
+3 (+5) |
|
0 (0) |
 | Average Min Temperature °C ( °F) |
+4 (+6) |
+0 (+0) |
-2 (-3) |
-3 (-5) |
-3 (-5) |
-2 (-4) |
-2 (-3) |
-2 (-3) |
-1 (-2) |
0 (0) |
+3 (+5) |
+4 (+7) |
|
0 (0) |
 | Average Precipitation mm (in) |
+113 (+4) |
+59 (+2) |
+20 (+1) |
+9 (+0) |
-74 (-3) |
-129 (-5) |
-107 (-4) |
-142 (-6) |
-123 (-5) |
+61 (+2) |
+155 (+6) |
+135 (+5) |
|
-21 (-1) |
 | Number of Precipitation Days (% chance of precip. on a day ) |
+15 (+48) |
+11 (+39) |
+7 (+23) |
+5 (+17) |
+3 (+10) |
-1 ( -3) |
+4 (+13) |
0 ( 0) |
+3 (+10) |
+11 (+35) |
+16 (+53) |
+19 (+61) |
|
+93 (+25) |
 | Average Sunlight Hours/ Day |
-0h 19' |
+0h 21' |
+1h 52' |
+1h 14' |
+1h 38' |
+3h 32' |
+3h 17' |
+3h 44' |
+1h 18' |
-0h 23' |
-1h 12' |
-1h 40' |
|
+1h 06' |
 | Average Daylight Hours & Minutes/ Day |
-0h 01' |
-0h 01' |
-0h 00' |
+0h 00' |
+0h 01' |
+0h 01' |
+0h 01' |
+0h 01' |
+0h 00' |
-0h 00' |
-0h 01' |
-0h 01' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
-0.3 |
-0.3 |
-0.3 |
-0.3 |
+0.4 |
+0.5 |
+0.4 |
-0.6 |
-0.7 |
-0.6 |
-0.6 |
-0.5 |
| -0.3 |
 | Relative Humidity (%) |
+5 |
+7 |
+7 |
+6 |
-1 |
-4 |
-4 |
-6 |
-5 |
+0 |
+6 |
+5 |
|
+1.3 |
 | Average Dew Point Temperature °C & (°F) |
+2.8 (+5) |
+1.1 (+2) |
-0.9 (-2) |
-2 (-4) |
-1.8 (-3) |
-1.5 (-3) |
-1.3 (-2) |
-1.5 (-3) |
-1.1 (-2) |
+0.5 (+1) |
+3 (+5) |
+3.8 (+7) |
|
+0.1 (+0) |
There are so many comparison pages. Please post a link to one to help people find them:
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San Juan vs Diamantina, Brazil
San Juan vs Nouakchott, Mauritania
Vientiane vs Sta. Vit. Palmar, Brazil
Vientiane vs Itaberaba, Brazil
Vientiane vs Bejaia, Algeria
Vientiane vs Leitchfield, Ky, Usa
Darbhanga vs Mandalay
Mcconnelsville, Oh vs Carlinville, Il
Bom J. Do Piaui vs Gander, Newfoundland
Hot Springs, Sd vs Moanda
San Juan vs Vientiane Discussion
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