Singapore Weather Alert: If you’re planning to head outdoors this weekend in Singapore, you might want to carry an umbrella—and a backup plan. The Singapore Weather Alert for weekend thunderstorms is in full effect, and the Meteorological Service Singapore (MSS) has issued updated forecasts indicating moderate to heavy showers, especially in the afternoons and evenings.
This surge in thunderstorm activity is due to the ongoing inter-monsoon season, which typically brings unpredictable weather patterns, including lightning, strong gusts of wind, and high humidity levels. Let’s dive into what this means for your weekend, how to stay safe, and what to expect next.
Singapore Weather Alert
| Feature | Details |
|---|---|
| Forecast Dates | Saturday, May 10 & Sunday, May 11, 2025 |
| Temperature | High: 33–34°C / 91–93°F; Low: 25–26°C / 77–79°F |
| Rain Type | Isolated to widespread thunderstorms |
| Cause | Inter-monsoon season & increased convection |
| Risk Factors | Local flooding, lightning, strong winds |
| Useful Resources | weather.gov.sg, nea.gov.sg |
The Singapore Weather Alert for weekend thunderstorms is a timely reminder that even in a tropical climate, weather preparedness matters. Whether you’re planning to hit the parks, attend a wedding, or just do some errands, it’s best to factor in delays, dress accordingly, and stay updated through official channels.
As thunderstorms become more frequent during this inter-monsoon window, your safety and comfort depend on smart planning and awareness. Keep an umbrella handy, follow alerts, and adjust your plans to make the most of your weekend—rain or shine.
What Is the Inter-Monsoon Season?
Singapore experiences two inter-monsoon periods each year—typically in April–May and October–November. These periods are characterized by:
- Light and variable winds
- Increased humidity
- Afternoon thunderstorms
- High lightning activity
According to the Meteorological Service Singapore, the current inter-monsoon phase is in full swing, making thundery showers almost a daily feature. These conditions typically cause flash floods in low-lying areas, affect air quality, and can disrupt outdoor plans.
Weekend Forecast Breakdown: May 10–11, 2025
Saturday, May 10
- Morning: Partly sunny with increasing cloud cover
- Afternoon: Moderate to heavy thunderstorms, especially in central and northern regions
- Evening: Lingering showers with occasional gusty winds
Sunday, May 11
- Morning: Hot and humid with scattered clouds
- Afternoon: Intense thunderstorms expected island-wide
- Evening: Cooler temperatures and isolated drizzles post-storm
Tip: Reschedule picnics, sports events, or outdoor shoots to early morning or move them indoors.
What This Means for Daily Life
For most residents, thunderstorms are not unusual. However, the frequency and intensity during inter-monsoon periods require special attention:
- Traffic Disruptions: Heavy rain can lead to waterlogged roads and slower traffic.
- Flooding Risks: Areas like Orchard Road, Bukit Timah, and Bishan are more prone.
- Public Transport Delays: Expect increased wait times for buses and MRTs.
- Outdoor Events: May be cancelled or postponed due to lightning warnings.
Event planners, delivery services, and gig workers should track real-time alerts via the myENV app.
Lightning and Flood Safety Tips
Thunderstorms in Singapore can escalate quickly. Here’s how to stay safe and prepared:
Lightning Safety
- Stay indoors when you hear thunder—“When thunder roars, go indoors.”
- Avoid open fields, swimming pools, and metal structures.
- Disconnect electronic appliances during intense lightning activity.
Flood Safety
- Don’t walk or drive through flooded roads.
- Elevate important belongings if you live in ground-floor units.
- Follow PUB’s Flash Flood Alerts on social media or Telegram.
Must-Have Essentials
- Portable charger
- Umbrella or poncho
- Anti-slip footwear
- Battery-powered torchlight
Pro tip: Save emergency hotlines like SCDF (995) and NEA (1800-2255-632) on your phone.
Government Warnings and Real-Time Updates
The National Environment Agency (NEA) and MSS regularly issue weather alerts. You can stay informed through:
- myENV App: Real-time push notifications for weather, haze, and flood alerts.
- weather.gov.sg: 24-hour forecasts, lightning activity, and radar images.
- NEA Telegram Channel: Official updates at t.me/nea_sg
Set your alerts to ‘urgent’ so you don’t miss critical information during severe storms.
Impact on Events, Travel & Businesses
Local businesses, weekend markets, and delivery services may experience disruptions due to weather volatility. Here’s what you should do:
For Businesses:
- Move outdoor services and queues under shelter.
- Notify customers in advance about changes to operating hours.
- Ensure electrical wiring and POS systems are protected from water damage.
For Travellers:
- Check flight statuses on Changi Airport before heading out.
- Account for traffic delays en route to the airport.
- If heading to Sentosa, East Coast Park, or MacRitchie, prepare for sudden closures of trails or attractions.
Transport apps like Grab and Gojek may see surge pricing due to higher demand.
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Planning Ahead: Weather-Proofing Your Weekend
Don’t let the rain ruin your weekend plans. Here’s how to adapt:
Indoor Ideas
- Visit the ArtScience Museum, Jewel Changi’s indoor attractions, or shopping malls.
- Catch a film at The Projector or Cathay Cineplexes.
Smart Shopping
- Stock up on groceries and medication before the weekend.
- Shop online to avoid getting caught in the rain.
Family Activities
- Set up indoor games, crafts, or educational apps for kids.
- Try virtual museum tours or interactive exhibits online.
“Singapore weather is unpredictable, but our plans don’t have to be,” says meteorologist Lim Yi Hui of MSS.
FAQs On Singapore Weather Alert
Q1: What causes thunderstorms during inter-monsoon seasons?
A: The convergence of winds from different directions leads to strong convection, which causes thunderstorms and heavy rainfall.
Q2: Are school activities cancelled during thunderstorms?
A: Not always. Schools have contingency plans, but parents should stay alert to advisories.
Q3: Can I still hike or jog?
A: Only in the early mornings if skies are clear. Avoid forested areas during lightning advisories.
Q4: Will this weather last all month?
A: Likely not. The inter-monsoon period is short but active. MSS expects above-average rainfall in early May.
Q5: How reliable are local weather apps?
A: The myENV app and weather.gov.sg provide official, real-time data and are the most accurate sources in Singapore.
