In Jamestown, they use Type G power plugs and outlets. The voltage is 230V, and the frequency is 50Hz.
⚠️ So, you’ll need a travel adapter in Jamestown. Their plugs and outlets are different from the Type A and B ones we use back in the States.
Quick Overview of the Plugs in Jamestown:
- Plug type in Jamestown: G
- Standard voltage: 230V
- Frequency: 50Hz
- Need a travel adapter? Yes, you do need a travel adapter
- Need a voltage converter? Don’t assume — check the power specs
- Recommended plug adapter: One Beat Travel Plug Adapter
We combine official data from local electrical agencies, international IEC standards, and firsthand experiences from global travelers to ensure reliable information.
Power Outlets in Jamestown
In Jamestown, they use Type G power plugs and outlets.
Type G

Type G outlets have three rectangular prongs in a triangular layout and built-in fuses. Other plug types won’t fit without an adapter.
The Only Travel Adapter You’ll Need in Jamestown
Finding the right travel adapter for Jamestown can be confusing. That’s why we did the homework for you. We don’t sell them, but here’s the best one for safe, worry-free charging:
Recommended Travel Plug Adapter
by 2,000+ travelers on Amazon
Already out there and forgot your power adapter? You’ll most likely be fine—there are usually options around. But next time, packing your own saves you the trouble and ensures you’ve got something reliable.
Jamestown is often combined with routes that include South Africa, Namibia, or Angola. Make sure to check the plug types for each destination.
Do You Need a Voltage Converter?
You’ll probably need a voltage converter in Jamestown since your device’s voltage has to match the local power supply. In the U.S., we use 120V, but Jamestown operates on a different voltage, so a converter is required.
Before using your electronics in another country, always check the voltage label to make sure it’s compatible. If it states “100-240V, 50/60 Hz”, your device can handle both 120V and 220-240V without needing a converter. Many modern gadgets, including laptops, tablets, and cameras, support this.

Which Travel Devices May Need a Converter?
Don’t want to guess which converter works? Here are the best-reviewed ones worth checking out.
| Device | Need Converter? | Notes |
|---|---|---|
| Phone | ❌ No (usually) | Most modern phone chargers are dual voltage (100–240V) |
| Laptop | ❌ No (usually) | Check the power brick label for 100–240V |
| Hairdryer | ✅ Yes (often) | High wattage; many models are not dual voltage |
| Electric toothbrush | ⚠️ Check voltage | Some models are 110V only |
| Camera / DSLR | ❌ No (usually) | Most chargers are dual voltage |
| Power bank | ❌ No | Charges via USB, adapter is enough |
| Electric shaver / trimmer | ⚠️ Check voltage | Older or cheaper models may not support 230V |
| Tablet / iPad | ❌ No | All models are dual voltage |
| Portable fan | ✅ Yes (sometimes) | Many models are not compatible with 230V |
| Game console | ⚠️ Check voltage | Newer consoles like PS5 and Xbox are often dual voltage — check to be sure |
| Bluetooth speaker | ❌ No (usually) | Charges via USB |
| E-reader (Kindle, etc.) | ❌ No | USB charging only, no converter needed |
Top Travel Essentials to Pack
Once you’ve got your plug situation sorted, take a look at these extras. They can help make everything else easier.
Digital Luggage Scale
Packing Cubes
Power Bank
More About Jamestown
Jamestown is Saint Helena’s colonial-era capital tucked into a narrow valley carved by cliffs—it’s the only real town on the island and feels worlds away from daily hustle. Its Georgian buildings and colorful facades cluster around the old harbor, where ferries still dock near curious locals. The winding streets are lined with jacaranda trees that bloom lavender in season, giving Jamestown a soft, welcoming glow. This was Napoleon’s arrival port in 1815, and the atmosphere still carries whispers of that historic exile.
The rugged backdrop is dramatic: steep cliffs rise sharply on either side, limiting expansion and lending the town an intimate scale. If you’re up for a challenge, Jacob’s Ladder isn’t just a workout—it’s a rite of passage: 699 steps up to Ladder Hill Fort and sweeping views over the bay below. Despite its remoteness, Jamestown is surprisingly easy to explore by foot, with local shops, cafés, and an improbable sense of community. For a U.S. visitor, it feels like stepping into an island storybook, where walking around is a journey through layered history.
Jamestown experiences a mild, ocean-influenced climate—summers usually range from the 60s to low 70s °F, with occasional highs near 90, and winters settle down around mid-50s to low 60s. Rainfall is light at sea level—just over 4 inches annually—though uplands see far more moisture. Winds are ever-present, so evenings on the waterfront can feel refreshingly brisk. For Americans seeking a destination that’s cool, historic, and refreshingly off the beaten track, Jamestown delivers calm charm with plenty to discover.
Jamestown uses the same plugs and outlets as the rest of Saint Helena.
