Vs > Olbia/ Costa Smeralda
 | Jamestown vs Olbia/ Costa Smeralda Climate & Distance Between |  |
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- The distance between Jamestown, Saint Helena and Olbia/ Costa Smeralda, Italy is approximately 6,510 km or 4,046 mi.
- To reach Jamestown in this distance one would set out from Olbia/ Costa Smeralda bearing 197.2° or SSW
 and follow the great circles arc to approach Jamestown bearing 193.5° or SSW .
- Jamestown has a subtropical hot desert climate (BWh) whereas Olbia/ Costa Smeralda has a Mediterranean hot climate (Csa).
- The annual average temperature is 5.6 °C (10.1°F) warmer.
- Average monthly temperatures vary by 10.8 °C (19.4°F) less in Jamestown. The continentality subtype is truly hyperoceanic as opposed to truly oceanic.
- Total annual precipitation averages 445.4 mm (17.5 in) less which is equivalent to 445.4 l/m² (10.93 US gal/ft²) or 4,454,000 l/ha (476,162 US gal/ac) less. About 1/4 as much.
- The altitude of the sun at midday is overall 21.4° higher in Jamestown than in Olbia/ Costa Smeralda.
- Relative humidity levels are 3.5% higher.
- The mean dew point temperature is 6.1°C (11°F) higher.
Climate Comparison Table
The table shows values for Jamestown relative to Olbia/ Costa Smeralda. You can also view this comparison the other way around from the perspective of Olbia/ Costa Smeralda vs Jamestown.
| | |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Annual |
 | Average Max Temperature °C ( °F) |
+12 (+22) |
+12 (+21) |
+12 (+21) |
+9 (+15) |
+1 (+2) |
-5 (-8) |
-9 (-15) |
-9 (-16) |
-5 (-9) |
+1 (+1) |
+5 (+9) |
+9 (+15) |
|
+3 (+5) |
 | Average Temperature °C ( °F) |
+14 (+25) |
+13 (+24) |
+13 (+23) |
+11 (+19) |
+5 (+9) |
-1 (-1) |
-4 (-8) |
-5 (-8) |
-1 (-3) |
+3 (+5) |
+8 (+15) |
+11 (+20) |
|
+6 (+10) |
 | Average Min Temperature °C ( °F) |
+16 (+28) |
+15 (+27) |
+16 (+28) |
+13 (+23) |
+8 (+14) |
+3 (+5) |
-1 (-2) |
-2 (-3) |
+1 (+2) |
+6 (+11) |
+10 (+18) |
+13 (+23) |
|
+8 (+15) |
 | Average Precipitation mm (in) |
-39 (-2) |
-63 (-2) |
-43 (-2) |
-46 (-2) |
-19 (-1) |
0 (0) |
+27 (+1) |
-18 (-1) |
-36 (-1) |
-56 (-2) |
-56 (-2) |
-95 (-4) |
|
-445 (-18) |
 | Average Daylight Hours & Minutes/ Day |
+3h 24' |
+2h 06' |
+0h 23' |
-1h 27' |
-3h 01' |
-3h 48' |
-3h 27' |
-2h 07' |
-0h 20' |
+1h 30' |
+3h 03' |
+3h 48' |
|
0h 00' |
 | Sun altitude at solar noon on the 21st day (°) |
+56 |
+45.1 |
+24.3 |
+1.2 |
-15.4 |
-21.8 |
-15.9 |
+0.8 |
+23.7 |
+45.4 |
+55.6 |
+56.8 |
| +21.4 |
 | Relative Humidity (%) |
-7 |
-4 |
-1 |
-1 |
+6 |
+14 |
+14 |
+13 |
+8 |
+7 |
+0 |
-7 |
|
+3.5 |
 | Average Dew Point Temperature °C & (°F) |
+11.8 (+21) |
+11.9 (+21) |
+11.7 (+21) |
+9.9 (+18) |
+6.1 (+11) |
+2.9 (+5) |
-0.9 (-2) |
-1.5 (-3) |
+0.3 (+1) |
+4.4 (+8) |
+7.8 (+14) |
+9.2 (+17) |
|
+6.1 (+11) |
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Jamestown vs Olbia/ Costa Smeralda Discussion
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